01
Numbers up to 5
Page 8Write numbers
📝 Write the numbers 0 to 5 Solution
- 0
- 1
- 2
- 3
- 4
- 5
Page 9Shapes · Dot array and more
👆 Counting shapes to 3 Solution
👆🎨 Count and color dots up to 3 Solution
👆 Read the dice up to 3 Solution
➕ Plus up to 3 - work it out! Solution
0+1=1
1+1=2
2+1=3
1+0=1
0+2=2
1+2=3
2+0=2
3+0=3
1+2=3
0+3=3
1+1=2
2+1=3
1+0=1
2+1=3
0+1=1
1+1=2
Page 10Number line · Add pictures · Read dice
📝 Missing numbers on the number line Solution
👆➕ Adding with pictures up to 4 Solution
👆 Read the dice Solution
Page 11Symmetry · Dot array · Add pictures
🎨 Complete the mirror images Solution
👆🎨 Count and color! Solution
👆➕ Adding with pictures up to 5 Solution
Page 12Add pictures · Calculation and more
👆➕ Adding with breakfast Solution
➕ Plus - work it out! Solution
1+1=2
5+0=5
1+2=3
3+1=4
2+2=4
0+4=4
2+3=5
1+4=5
4+1=5
0+5=5
3+2=5
3+0=3
2+1=3
4+0=4
1+3=4
0+3=3
➕ Work out the petals following the arrows Solution
➕ Complete each floor to the roof number Solution
Page 13Number line · Neighbor numbers
📝 Fill in the missing numbers! Solution
📝 Find the neighbor numbers Solution
Page 14Add pictures · Calculation and more
👆➕ Add up three groups Solution
➕ Plus - keep practicing! Solution
1+1+1=3
2+1+1=4
1+2+1=4
1+1+2=4
3+1+1=5
1+3+1=5
1+1+3=5
2+2+1=5
2+1+2=5
1+2+2=5
0+2+3=5
3+0+2=5
👆🎨 Count the dots and color! Solution
🎨🔁 How does the pattern continue? Solution
Page 15Cards · Number square and more
🔍➕ Find the two matching cards Solution
➕ Find the missing numbers in the squares Solution
👆➕ Adding with three groups Solution
👆➕ Two dice - plus Solution
Page 16Subtract pictures · Break apart · Blocks
👆➖ Subtracting with pictures up to 5 Solution
➗ Break the numbers apart! Solution
👆➕ Count the towers and add them up Solution
Page 17Tally chart · Calculation · Cards
👆🔗 The class's favorite fruit Solution
➖ Minus - keep practicing Solution
5−3=2
5−2=3
5−4=1
4−2=2
4−1=3
4−3=1
3−1=2
3−2=1
2−1=1
5−1=4
4−4=0
5−5=0
3−3=0
2−2=0
1−1=0
1−0=1
➕ Add up the cards Solution
Page 18Number house · Calculation and more
➕ Complete the number houses Solution
🧮 What is missing? Solution
1+2=3
2+2=4
3−2=1
3−1=2
2+3=5
4+1=5
5−2=3
5−2=3
4−3=1
2+3=5
1+1=2
5−1=4
1+4=5
3+1=4
5−4=1
5−1=4
👆➖ Two dice - minus Solution
➗ Keep breaking apart Solution
Page 19Caterpillar · Wall · Break apart
🧮 Work out the caterpillars step by step Solution
➕ Two bricks make the brick above Solution
➗ Breaking apart again Solution
Page 20Pattern · Number house · Wall
🎨🔁 Continue the shapes Solution
➕ Complete the number houses Solution
➕ Six bricks Solution
Page 21Caterpillar · Subtract pictures and more
🧮 Work out the caterpillars Solution
👆➖ How many are left? Solution
🧮 Plus and minus mixed! Solution
2+2−1=3
3−1+2=4
3+1−1=3
4−1−1=2
5−2−1=2
1+0+0=1
2+3−1=4
4−2+1=3
5−3+2=4
1+0+1=2
2+1+1=4
3+1+1=5
➕ Add outward from the spider Solution
Page 22Calculation · Spider and more
🧮 What is missing? More gaps Solution
1+4=5
3−2=1
5−3=2
2+2=4
3+2=5
4−2=2
3+1=4
3−1=2
4−2=2
2+1=3
1+3=4
5−3=2
4+1=5
5−4=1
5−1=4
1+4=5
➖ Subtract outward from the spider Solution
➕ Simple squares Solution
➕ What does this cost altogether? Solution
1. $3
2. $3
3. $2
4. $4
Page 23Compare · Order numbers
⚖️ Compare the numbers Solution
2<4
5>3
1=1
4>2
3<5
0<2
5=5
3>1
1>0
4>3
2=2
4<5
5>4
4=4
3<4
5>2
3=3
2<5
5>1
1<5
⚖️ Order from smallest to largest Solution
Page 25Boss Level Numbers to 5
A Boss level: numbers up to 5 Solution
Leaf - Spider = 3
02
Numbers up to 10
Page 28Write numbers
📝 Numbers 6 to 10 Solution
- 6
- 7
- 8
- 9
- 10
Page 29Number flower · Pattern · Number line
➕ Work out the petals Solution
👆 Counting up and down Solution
📝 Three numbers are missing Solution
Page 30Dot array · Pattern · Number line
👆🎨 Count and color the dots Solution
🔁 Continue the number patterns Solution
📝 Fill in the missing numbers! Solution
Page 31Neighbor numbers · Dot array · Number flower
📝 Find the neighbors! Solution
👆🎨 Count the dark dots - or color them in! Solution
➕ Now the flower in steps of two Solution
Page 32Pattern · Calculation · Break apart
🔁 Continue the pattern Solution
📝 Count in jumps Solution
➕ Fill up to 10 Solution
1+9=10
3+7=10
5+5=10
7+3=10
9+1=10
2+8=10
4+6=10
6+4=10
8+2=10
1+9=10
3+7=10
7+3=10
➗ Break apart the numbers! Solution
Page 33Number house · Number flower and more
➕ Complete the number houses Solution
➕ Steps of two in the flower Solution
🧮 Work out the caterpillars Solution
➕ What goes in front? Solution
8+2=10
6+4=10
4+6=10
2+8=10
9+1=10
7+3=10
5+5=10
3+7=10
1+9=10
3+7=10
2+8=10
4+6=10
Page 34Spider · Break apart · Inverse
➕ Spider wheel up to 10 Solution
➗ Split the numbers! Solution
🧮 From plus to minus Solution
3 + 4 = 7
7 − 4 = 3
7 − 3 = 4
2 + 6 = 8
8 − 6 = 2
8 − 2 = 6
5 + 2 = 7
7 − 2 = 5
7 − 5 = 2
1 + 9 = 10
10 − 9 = 1
10 − 1 = 9
4 + 3 = 7
7 − 3 = 4
7 − 4 = 3
5 + 5 = 10
10 − 5 = 5
10 − 5 = 5
4 + 5 = 9
9 − 5 = 4
9 − 4 = 5
3 + 6 = 9
9 − 6 = 3
9 − 3 = 6
2 + 8 = 10
10 − 8 = 2
10 − 2 = 8
Page 35Calculation · Compare lengths · Find the error
➕ Three numbers - plus! Solution
2+3+1=6
4+3+2=9
1+2+2=5
3+4+3=10
5+2+1=8
2+2+3=7
4+1+4=9
1+3+2=6
3+3+1=7
2+4+4=10
4+2+2=8
1+1+3=5
📏 Longer and shorter Solution
🔍🧮 Did Euli miscalculate? Solution
2+1=4→3
5−2=3
1+3=5→4
4−1=3
3+2=5
5−3=1→2
1+4=5
4−2=3→2
Page 36Cards · Swap and more
➕ Adding up cards Solution
➕ Work out both sides! Solution
2+3=5↔3+2=5
1+4=5↔4+1=5
3+7=10↔7+3=10
4+5=9↔5+4=9
2+6=8↔6+2=8
1+8=9↔8+1=9
3+4=7↔4+3=7
5+5=10↔5+5=10
➖ Simple subtraction problems Solution
8−1=7
9−2=7
7−3=4
6−4=2
10−5=5
5−4=1
9−8=1
10−2=8
5−1=4
5−2=3
8−3=5
7−4=3
🔁 Continue the pattern Solution
Page 37Pattern · Wall · Break apart
📝 Count in steps Solution
➕ Build up the wall! Solution
➗ Final sprint: breaking numbers apart Solution
Page 38Calculation · Maze · Number flower
➖ Minus - work it out! Solution
8−2=6
6−4=2
9−5=4
10−3=7
7−1=6
9−2=7
6−3=3
8−5=3
10−2=8
8−3=5
7−5=2
9−3=6
6−2=4
10−5=5
8−4=4
9−1=8
🗺️ Find the right path! Solution
➕ Work out the petals Solution
Page 39Even & Odd · Tally chart · Cards
👆☑️ Even or odd Solution
👆🔗 The children's favorite weather Solution
➕ Adding up cards Solution
Page 40Time · Money
🕐 Full hours up to 5 Solution
👆➕ Count the money Solution
Page 41Magic picture · Dragon
🎨 Number magic Solution
➕ Dragon math Solution
Page 42Wall · Blocks
➕ Taller walls Solution
👆🧮 Plus and minus with towers Solution
Page 43Time · Symmetry
🕐 Full hours up to 10 Solution
🎨 Complete the mirror image Solution
Page 44Calculation · Pictogram · Blocks
➖ Minus - work it out! Solution
5−2=3
4−3=1
5−5=0
3−2=1
5−1=4
2−2=0
4−4=0
5−3=2
4−1=3
3−3=0
5−4=1
4−2=2
1−0=1
3−1=2
2−1=1
5−0=5
👆 At the clothesline Solution
👆➖ Take towers apart Solution
Page 45Time · Calendar · Even & Odd
🕐 What time is it? Solution
📖 Reading the calendar Solution
1. 3
2. 8
3. 5
4. 4
5. 8
6. 1
👆☑️ Even or odd Solution
Page 46Blocks · Calculation · Tally chart
👆➕ Building towers Solution
➖ Even more subtraction up to 10 Solution
10−3=7
9−4=5
8−5=3
7−6=1
6−2=4
10−5=5
9−8=1
8−2=6
7−1=6
6−4=2
10−7=3
9−6=3
👆⚖️ The class's favorite animals Solution
Page 47Compare lengths · Money
📏 Short and long pencils Solution
👆➕ Count the money Solution
Page 48Calendar · Ingredient hunt and more
📖 Find the days in the calendar Solution
1. 3
2. 8
3. 1
4. 6
5. 2
6. 9
➕➖🔍 Find the ingredients Solution
🧮 Work out the chain! Solution
1+5+3=9
8−4+1=5
7−2−3=2
2+6−5=3
4+5−6=3
9−3−2=4
6+2−4=4
3+4+2=9
1+1+8=10
2−1+9=10
10−1−1=8
1+9−1=9
➕ Double the number! Solution
5+5=10
2+2=4
3+3=6
1+1=2
4+4=8
3+3=6
2+2=4
5+5=10
3+3=6
1+1=2
4+4=8
0+0=0
2+2=4
0+0=0
5+5=10
4+4=8
Page 49Share fairly · Spider · Number house
➗ Sharing fairly Solution
➖ Spider wheel minus Solution
➕ Complete the number houses Solution
Page 50Position · Table · Pictogram
🗺️ Help Euli reach Numerion! Solution
➕ Fill in the plus tables Solution
👆 How many apples does each child have? Solution
Page 51Inverse · Cards · Swap
🧮 From plus to minus Solution
4 + 5 = 9
9 − 5 = 4
9 − 4 = 5
6 + 2 = 8
8 − 2 = 6
8 − 6 = 2
3 + 5 = 8
8 − 5 = 3
8 − 3 = 5
2 + 7 = 9
9 − 7 = 2
9 − 2 = 7
1 + 8 = 9
9 − 8 = 1
9 − 1 = 8
7 + 3 = 10
10 − 3 = 7
10 − 7 = 3
4 + 4 = 8
8 − 4 = 4
8 − 4 = 4
6 + 4 = 10
10 − 4 = 6
10 − 6 = 4
1 + 7 = 8
8 − 7 = 1
8 − 1 = 7
➖ Subtracting cards Solution
➕ Swap problems Solution
5+2=7↔2+5=7
4+6=10↔6+4=10
1+8=9↔8+1=9
2+7=9↔7+2=9
3+5=8↔5+3=8
1+9=10↔9+1=10
2+4=6↔4+2=6
3+6=9↔6+3=9
Page 52Dominoes · Cards · Number line
👆☑️ Find the matching dominoes Solution
- 1 + 5, 2 + 4, 3 + 3, 4 + 2, 0 + 6
➕ Find the secret card Solution
📝 Fill in the missing numbers! Solution
Page 53Caterpillar · Compare and more
🧮 Work out the caterpillars Solution
⚖️ Compare the numbers Solution
3<5
7=7
9>4
2<8
6=6
10>3
1<5
8=8
4<9
7>2
5<10
9=9
9<10
10>9
10=10
8<10
10>8
5=5
8<9
9>8
🔍🧮 Did Euli miscalculate? Solution
3+4=8→7
6−2=4
5+3=8
9−4=6→5
2+6=8
7−3=5→4
4+5=9
10−6=3→4
🧮 Work out the chain! Solution
2+3+1+4=10
1+2+3+2=8
10−2−3−1=4
4+2+1+2=9
8−3−2−1=2
5+1+2−3=5
9−6+4−2=5
3+3−4+2=4
Page 54Blocks · Inverse
👆➖ Taking towers apart Solution
🧮 From minus to plus Solution
9 − 4 = 5
5 + 4 = 9
4 + 5 = 9
8 − 3 = 5
5 + 3 = 8
3 + 5 = 8
7 − 6 = 1
1 + 6 = 7
6 + 1 = 7
10 − 2 = 8
8 + 2 = 10
2 + 8 = 10
6 − 2 = 4
4 + 2 = 6
2 + 4 = 6
8 − 5 = 3
3 + 5 = 8
5 + 3 = 8
9 − 3 = 6
6 + 3 = 9
3 + 6 = 9
10 − 4 = 6
6 + 4 = 10
4 + 6 = 10
7 − 3 = 4
4 + 3 = 7
3 + 4 = 7
Page 55Ingredient hunt · Halving · Find the error
➕➖🔍 Collect all the ingredients Solution
➗ Halve the number! Solution
🔍🧮 Did Euli miscalculate? Solution
4+3=8→7
9−5=4
6+2=9→8
10−4=6
3+5=8
8−3=4→5
5+4=9
7−6=2→1
Page 56Golem · Shopping and more
➕ Add each pair of numbers to get the one above Solution
➕ What does this cost altogether? Solution
1. $3
2. $4
3. $3
4. $5
🧮 Work out the caterpillars Solution
➕ Another plus table Solution
Page 57Share fairly · Spider · Pictogram
➗ Sharing fairly Solution
➕ Spider wheel - tricky! Solution
👆 On the clothesline Solution
Page 58Maze · Position
🗺️ Find the right path! Solution
🗺️ The path is longer now Solution
Page 59Table · Pictogram · Number cross
➕ Fill in the plus tables up to 10 Solution
👆 How many balls does each child have? Solution
🧮 Arrow math Solution
Page 60Ingredient hunt · Dice and more
➕➖🔍 Find all the ingredients Solution
👆➖ How much is left? Solution
👆➕🎨 Complete the domino Solution
- 3 + 4 = 7
- 2 + 4 = 6
- 4 + 5 = 9
- 1 + 4 = 5
- 5 + 3 = 8
- 2 + 6 = 8
- 4 + 3 = 7
- 1 + 5 = 6
🔍➕ Pick the right cards Solution
Page 61Even & Odd · Compare and more
👆☑️ Even or odd Solution
⚖️🧮 Compare the calculations Solution
3 + 2=4 + 1
7 − 3>2 + 1
5 + 5=8 + 2
9 − 4<3 + 3
6 + 1<4 + 4
8 − 2=3 + 3
10 − 5>2 + 2
4 + 3=5 + 2
6 + 2=9 − 1
10 − 3>2 + 4
5 + 4>3 + 5
8 − 1<6 + 2
👆➕ Dominoes to 10 Solution
➗ One part is missing! Solution
Page 62Dungeon · Golem · Pattern
🗺️ Escape the dungeon! Solution
➕ Another golem pyramid Solution
📝 What comes next? Solution
Page 63Cards · Wall · Dice
🔍➕ Pick the right cards Solution
➕ Find the missing numbers! Solution
👆➖ How much is left? Solution
Page 64Ingredient hunt · Cube net · Cards
➕➖🔍 Which ingredients go into the cauldron? Solution
☑️ Puzzle bonus: Which net folds into a cube? Solution
➕ Find the secret card Solution
Page 65Dungeon · Caterpillar · Cards
🗺️ Back in the dungeon! Solution
🧮 Work out the caterpillars Solution
➖ Subtract the cards Solution
Page 66Dice · Maze · Shopping
👆➖ How much is left? Solution
🗺️ Paths Solution
➕ What does this cost altogether? Solution
1. $7
2. $7
3. $9
4. $8
5. $6
6. $10
Page 67Number line · Compare lengths
📝 Tricky number lines! Solution
📏 Measuring pencils Solution
Page 68Number square · Cards and more
➕ Simple squares Solution
➕ Can you solve it? Solution
⚖️ Which number is bigger? Solution
2<5
4>1
3<4
5>2
1<4
0<3
5>0
0<2
3>1
4<5
0<1
5>4
3<5
5>3
5=5
2<4
4>3
4=4
1<5
4>2
➕ Complete the number houses Solution
Page 69Neighbor numbers · Calculation · Swap
📝 One is missing - which one? Solution
🧮 How much is it? Solution
2+3=5
4+4=8
9−3=6
10−6=4
7−4=3
3+6=9
1+9=10
10−7=3
4+5=9
9−5=4
10−1=9
3+4=7
➕ Harder swap problems Solution
6+3=9↔3+6=9
2+8=10↔8+2=10
3+5=8↔5+3=8
1+9=10↔9+1=10
4+5=9↔5+4=9
2+6=8↔6+2=8
3+7=10↔7+3=10
1+7=8↔7+1=8
Page 70Maze · Spider · Cards
🗺️ More mazes Solution
➕ Spider wheel Solution
➕ Find the secret cards Solution
Page 71Doubling · Halving · Multiply
➕ Double the number! Solution
3+3=6
1+1=2
2+2=4
5+5=10
4+4=8
0+0=0
5+5=10
3+3=6
5+5=10
2+2=4
4+4=8
1+1=2
2+2=4
3+3=6
0+0=0
4+4=8
➗ Halve the number! Solution
➕ How many times does the number fit? Solution
2 + 2 + 2=6→2fits3times
2 + 2=4→2fits2times
3 + 3=6→3fits2times
2 + 2 + 2 + 2=8→2fits4times
Page 72Dice · Swap and more
👆➖ How much is left? Solution
➕ Practice swap problems Solution
3+4=7↔4+3=7
5+5=10↔5+5=10
7+2=9↔2+7=9
6+4=10↔4+6=10
3+6=9↔6+3=9
2+8=10↔8+2=10
1+9=10↔9+1=10
4+5=9↔5+4=9
➕ Magic triangles Solution
🧮 Mixed problems Solution
6+4=10
8−4=4
3+7=10
10−3=7
2+6=8
8−3=5
5+3=8
9−4=5
2+3=5
2+4=6
7−2=5
4+5=9
Page 73Multiply · Pattern and more
➕ How often does the number fit? Solution
4 + 4=8→4fits2times
2 + 2 + 2 + 2 + 2=10→2fits5times
3 + 3 + 3=9→3fits3times
1 + 1 + 1 + 1=4→1fits4times
🔁 Number patterns Solution
➕ Complete the number houses Solution
➕ Add in the golem pyramid Solution
Page 74Dungeon · Wall
🗺️ Escape the dungeon! Solution
➕ Tricky walls! Solution
Page 75Count containers · Number square · Table
👆➕ How many are in the containers altogether? Solution
➕ Squares up to 10 Solution
➕ Fill in the plus tables Solution
Page 76Multiply · Shopping · Symmetry
➕ Multiplying Solution
1 + 1 + 1 + 1 + 1 + 1=6→1fits6times
2=2→2fits1times
5 + 5=10→5fits2times
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1=9→1fits9times
➕ What does this cost altogether? Solution
1. $7
2. $10
3. $9
4. $7
🎨 Complete the mirror image Solution
Page 77Number square · Magic potion · Pattern
➕ Tricky squares up to 10 Solution
➕ How many ingredients does the magic potion need? Solution
1. 8
2. 8
3. 9
4. 7
5. 8
6. 9
7. 8
8. 9
🎨🔁 Shape patterns Solution
Page 78Symmetry · Match dice · Number square
🎨 Complete the mirror image Solution
🔗 Which die fits? Solution
➕ Simple squares Solution
Page 79Magic code · Magic picture · Match dice
🔍🧮 The magic wand code Solution
🎨 Number magic Solution
🔗 Which die fits? Solution
Page 80Symmetry · Dungeon
🎨 Complete the harder mirror image Solution
🗺️ Find the way! Solution
Page 81Golem · Dragon · Match dice
➕ Add in the golem pyramid Solution
➕ Dragon math Solution
🔗➕ Two dice - which sum? Solution
Page 83Boss Level Numbers to 10
A Boss level: numbers up to 10 Solution
2 + 1 + 2 + 1 = 6
3 + 3 + 1 + 1 + 2 = 10
3 + 4 + 2 = 9
2 + 1 + 1 + 1 + 2 = 7 ← magic 7!
2 + 3 + 1 + 3 + 1 = 10
03
Numbers up to 20
Page 86Write numbers
📝 Write the numbers 11 to 20 Solution
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
Page 87Tally chart · Dot array · Neighbor numbers
👆🔗 Favorite animals at the zoo Solution
👆🎨 Twenty frame: count and color the dots Solution
📝 Find the neighbors! Solution
Page 88Order numbers · Dot array · Number line
⚖️ Sort from smallest to largest! Solution
👆🎨 Twenty frame: keep practicing Solution
📝 Fill in the missing numbers! Solution
Page 89Order numbers · Neighbor numbers · Even & Odd
⚖️ Largest to smallest Solution
📝 Find the neighbors! Solution
Page 90Number line · Dot array · Compare
📝 Long number lines Solution
👆🎨 Many dots Solution
⚖️ Compare the numbers Solution
12<15
18=18
14>9
7<16
11=11
20>13
6<17
19=19
10>5
8<13
16>4
3<14
9>2
13<17
20=20
4<11
Page 91Twenty frame
➕ Twenty-frame: calculating across ten Solution
8+2+3=13
9+1+3=13
7+3+3=13
6+4+3=13
Page 92Make ten · Crossing ten · Pattern
➕ Bridge across ten - addition Solution
8 + 5: 8 +2 → 10 +3 → 13
7 + 6: 7 +3 → 10 +3 → 13
9 + 4: 9 +1 → 10 +3 → 13
6 + 7: 6 +4 → 10 +3 → 13
8 + 6: 8 +2 → 10 +4 → 14
9 + 5: 9 +1 → 10 +4 → 14
7 + 5: 7 +3 → 10 +2 → 12
8 + 7: 8 +2 → 10 +5 → 15
➕ Number-ten buddies help! Solution
9 + 2 = 9 + 1 + 1 = 10 + 1 = 11
7 + 4 = 7 + 3 + 1 = 10 + 1 = 11
6 + 5 = 6 + 4 + 1 = 10 + 1 = 11
8 + 3 = 8 + 2 + 1 = 10 + 1 = 11
8 + 6 = 8 + 2 + 4 = 10 + 4 = 14
7 + 5 = 7 + 3 + 2 = 10 + 2 = 12
9 + 6 = 9 + 1 + 5 = 10 + 5 = 15
5 + 7 = 5 + 5 + 2 = 10 + 2 = 12
🔁 Number patterns to 20 Solution
Page 93Break apart · Crossing ten and more
➗ Ten and a little more Solution
➕ Across ten - addition Solution
8 + 7 = 8 + 2 + 5 = 10 + 5 = 15
9 + 6 = 9 + 1 + 5 = 10 + 5 = 15
7 + 7 = 7 + 3 + 4 = 10 + 4 = 14
8 + 8 = 8 + 2 + 6 = 10 + 6 = 16
9 + 7 = 9 + 1 + 6 = 10 + 6 = 16
8 + 6 = 8 + 2 + 4 = 10 + 4 = 14
9 + 9 = 9 + 1 + 8 = 10 + 8 = 18
7 + 8 = 7 + 3 + 5 = 10 + 5 = 15
👆➕ How much is that altogether? Solution
👆☑️ Even or odd Solution
Page 94Crossing ten · Dominoes · Recognize solids
➕ Calculate across ten - addition Solution
8 + 5 = 8 + 2 + 3 = 10 + 3 = 13
9 + 4 = 9 + 1 + 3 = 10 + 3 = 13
7 + 5 = 7 + 3 + 2 = 10 + 2 = 12
6 + 6 = 6 + 4 + 2 = 10 + 2 = 12
8 + 4 = 8 + 2 + 2 = 10 + 2 = 12
9 + 3 = 9 + 1 + 2 = 10 + 2 = 12
7 + 8 = 7 + 3 + 5 = 10 + 5 = 15
6 + 7 = 6 + 4 + 3 = 10 + 3 = 13
👆➕ Domino sums Solution
🔗 Which solid is this? Solution
Page 95Time · Magic picture
🕐 Full hours Solution
🎨 Number magic Solution
Page 96Make ten · Crossing ten · Caterpillar
➖ Bridge across ten - subtraction Solution
13 − 5: 13 −3 → 10 −2 → 8
16 − 7: 16 −6 → 10 −1 → 9
11 − 7: 11 −1 → 10 −6 → 4
15 − 8: 15 −5 → 10 −3 → 7
12 − 9: 12 −2 → 10 −7 → 3
14 − 8: 14 −4 → 10 −4 → 6
11 − 9: 11 −1 → 10 −8 → 2
12 − 7: 12 −2 → 10 −5 → 5
➖ Calculate across ten - subtraction Solution
13 − 5 = 13 − 3 − 2 = 10 − 2 = 8
15 − 7 = 15 − 5 − 2 = 10 − 2 = 8
12 − 4 = 12 − 2 − 2 = 10 − 2 = 8
14 − 6 = 14 − 4 − 2 = 10 − 2 = 8
16 − 9 = 16 − 6 − 3 = 10 − 3 = 7
13 − 6 = 13 − 3 − 3 = 10 − 3 = 7
15 − 8 = 15 − 5 − 3 = 10 − 3 = 7
14 − 7 = 14 − 4 − 3 = 10 − 3 = 7
🧮 Work out the caterpillars Solution
Page 97Halve · Wall
➗ Halve the number! Solution
➕ Build the wall! Solution
Page 98Multiply · Caterpillar and more
➕ How often does the number fit? Solution
3 + 3 + 3 + 3=12→3fits4times
2 + 2 + 2 + 2 + 2 + 2 + 2=14→2fits7times
5 + 5 + 5=15→5fits3times
2 + 2 + 2 + 2 + 2 + 2 + 2 + 2=16→2fits8times
🧮 Work out the caterpillars Solution
➕ Steps up to 20 Solution
➕ Work out both sides! Solution
4+7=11↔7+4=11
5+8=13↔8+5=13
6+9=15↔9+6=15
7+9=16↔9+7=16
3+8=11↔8+3=11
5+9=14↔9+5=14
6+8=14↔8+6=14
4+9=13↔9+4=13
Page 99Double · Wall · Multiply
➕ Double the number! Solution
1+1=2
2+2=4
3+3=6
4+4=8
5+5=10
6+6=12
7+7=14
8+8=16
9+9=18
10+10=20
4+4=8
7+7=14
➕ Harder - find the missing numbers! Solution
➕ How often does the number fit? Solution
4 + 4 + 4 + 4=16→4fits4times
5 + 5 + 5 + 5=20→5fits4times
3 + 3 + 3 + 3 + 3 + 3=18→3fits6times
2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2=18→2fits9times
Page 100Inverse · Spider · Minus and plus
🧮 Bigger reverse problems Solution
12 + 5 = 17
17 − 5 = 12
17 − 12 = 5
11 + 8 = 19
19 − 8 = 11
19 − 11 = 8
14 + 3 = 17
17 − 3 = 14
17 − 14 = 3
15 + 4 = 19
19 − 4 = 15
19 − 15 = 4
13 + 6 = 19
19 − 6 = 13
19 − 13 = 6
10 + 8 = 18
18 − 8 = 10
18 − 10 = 8
12 + 7 = 19
19 − 7 = 12
19 − 12 = 7
11 + 5 = 16
16 − 5 = 11
16 − 11 = 5
14 + 5 = 19
19 − 5 = 14
19 − 14 = 5
➕ Spider wheel up to 20 Solution
🧮 Five and six less and more Solution
Page 101Riddle · Swap · Compare
📖 Who am I? Solution
- 1. 8
- 2. 5
- 3. 12
- 4. 18
➕ Swap problems Solution
9+8=17↔8+9=17
9+9=18↔9+9=18
10+9=19↔9+10=19
11+9=20↔9+11=20
8+7=15↔7+8=15
10+8=18↔8+10=18
12+7=19↔7+12=19
11+8=19↔8+11=19
⚖️🧮 Compare the sums Solution
8 + 5=6 + 7
15 − 3>9 + 2
10 + 7>8 + 8
14 − 4=5 + 5
11 + 3<7 + 8
16 − 6<4 + 7
9 + 9>20 − 3
12 + 5=8 + 9
6 + 8<17 − 2
13 + 5=19 − 1
16 − 4<7 + 6
11 + 8>4 + 13
Page 102Inverse · Maze
🧮 Bigger reverse problems Solution
12 + 4 = 16
16 − 4 = 12
16 − 12 = 4
10 + 7 = 17
17 − 7 = 10
17 − 10 = 7
16 + 2 = 18
18 − 2 = 16
18 − 16 = 2
9 + 8 = 17
17 − 8 = 9
17 − 9 = 8
11 + 4 = 15
15 − 4 = 11
15 − 11 = 4
8 + 7 = 15
15 − 7 = 8
15 − 8 = 7
13 + 5 = 18
18 − 5 = 13
18 − 13 = 5
14 + 4 = 18
18 − 4 = 14
18 − 14 = 4
12 + 6 = 18
18 − 6 = 12
18 − 12 = 6
🗺️ Find the right path! Solution
Page 103Recognize solids · Ingredient hunt · Dungeon
🔗 Which solid is this? Solution
➕➖🔍 The great ingredient hunt Solution
🗺️ Escape the great dungeon! Solution
Page 104Number cross · Pattern · Spider
🧮 Arrow math Solution
🔁 Continue the pattern Solution
➕ Spider wheel - mental math! Solution
Page 105Riddle · Number flower · Minus and plus
📖 Who am I? Solution
- 1. 7
- 2. 18
- 3. 15
- 4. 12
➕ Steps in the flower Solution
🧮 Six and seven less and more Solution
Page 106Dice · Magic square · Inverse
👆➕ How much is that altogether? Solution
➕ Every row, column and diagonal adds up to 15 Solution
🧮 Find the reverse Solution
16 − 7 = 9
9 + 7 = 16
7 + 9 = 16
18 − 9 = 9
9 + 9 = 18
9 + 9 = 18
20 − 6 = 14
14 + 6 = 20
6 + 14 = 20
15 − 8 = 7
7 + 8 = 15
8 + 7 = 15
19 − 11 = 8
8 + 11 = 19
11 + 8 = 19
13 − 5 = 8
8 + 5 = 13
5 + 8 = 13
17 − 8 = 9
9 + 8 = 17
8 + 9 = 17
14 − 6 = 8
8 + 6 = 14
6 + 8 = 14
20 − 9 = 11
11 + 9 = 20
9 + 11 = 20
Page 107Minus and plus · Pattern · Maze
🧮 Seven and eight less and more Solution
🔁 Tricky patterns Solution
🗺️ Paths! Solution
Page 108Pictogram · Calculation and more
👆 On the clothesline Solution
➕ What is missing? Solution
11+9=20
12+8=20
13+7=20
14+6=20
15+5=20
16+4=20
17+3=20
18+2=20
19+1=20
12+8=20
11+9=20
13+7=20
➕➖🔍 What goes into the cauldron? Solution
Page 109Position · Table · Minus and plus
🗺️ The big forest maze Solution
➕ Fill in the plus tables Solution
🧮 Eight and nine less and more Solution
Page 110Dungeon · Pictogram · Cards
🗺️ Adventure up to 20! Solution
👆 How many stars does each child have? Solution
➕ Add the cards Solution
Page 111Double · Magic triangle and more
➕ Double the number! Solution
7+7=14
4+4=8
6+6=12
8+8=16
10+10=20
9+9=18
3+3=6
5+5=10
2+2=4
1+1=2
7+7=14
10+10=20
➕ Magic triangles - different sums Solution
🔍🧮 Secret wizard writing Solution
🔍➕ Pick the right cards Solution
Page 112Share fairly · Order numbers · Tally chart
➗ Share it fairly Solution
⚖️ Sort the big numbers! Solution
👆⚖️ Who is more popular? Solution
Page 113Table · Cards and more
➖ Minus table Solution
➖ Subtract the cards Solution
➕ Squares up to 20 Solution
➕ Complete the number houses up to 20 Solution
Page 114Dungeon · Compare lengths
🗺️ The last dungeon! Solution
📏 Measuring pencils Solution
Page 115Cards · Table · Number square
🔍➕ Pick the right cards Solution
➕ Fill in the plus tables Solution
➕ Find the secret card Solution
➕ More squares up to 20 Solution
Page 116Find the error · Symmetry · Minus and plus
🔍🧮 Did Euli miscalculate? Solution
8+5=14→13
17−9=8
7+4=11
15−8=6→7
9+6=15
16−7=10→9
6+8=14
14−8=5→6
🎨 Complete the big mirror images Solution
🧮 Nine and ten less and more Solution
Page 117Cube net · Calculation · Calendar
☑️ Puzzle bonus: Which folding pattern makes a cube? Solution
➕ The other way around - what goes first? Solution
19+1=20
18+2=20
17+3=20
16+4=20
15+5=20
14+6=20
13+7=20
12+8=20
11+9=20
13+7=20
12+8=20
14+6=20
📖 Which day is it? Solution
1. 8
2. 6
3. 9
4. 12
Page 118Calendar · Tripling and more
📖 Find the date Solution
1. 10
2. 17
3. 6
4. 12
5. 18
6. 7
➕ Puzzle bonus: tripling Solution
1+1+1=3
2+2+2=6
3+3+3=9
4+4+4=12
5+5+5=15
6+6+6=18
2+2+2=6
3+3+3=9
4+4+4=12
5+5+5=15
6+6+6=18
1+1+1=3
➕ Mixed - fill up to 20! Solution
2+18=20
11+9=20
4+16=20
8+12=20
19+1=20
10+10=20
6+14=20
9+11=20
8+12=20
6+14=20
7+13=20
5+15=20
➕ What does this cost altogether? Solution
1. $9
2. $11
3. $10
4. $9
Page 119Table · Shopping · Calendar
➖ Minus table Solution
➕ Euli goes shopping Solution
1. $3 14¢
2. $3 12¢
3. $4 13¢
4. $2 12¢
📖 Which day is it? Solution
1. 13
2. 7
3. 9
4. 12
Page 120Calculation · Calendar · Time
➖ Practice minus up to 20 Solution
18−6=12
19−8=11
17−5=12
20−7=13
16−8=8
15−9=6
14−6=8
13−5=8
12−8=4
19−6=13
18−9=9
17−8=9
📖 Search for the days in the calendar Solution
1. 11
2. 17
3. 8
4. 9
5. 17
6. 4
🕐 Half hours Solution
Page 121Count containers · Tripling · Find the error
👆➕ How many are in the containers altogether? Solution
➕ Puzzle bonus: more tripling Solution
5+5+5=15
6+6+6=18
4+4+4=12
2+2+2=6
4+4+4=12
3+3+3=9
3+3+3=9
2+2+2=6
6+6+6=18
6+6+6=18
1+1+1=3
5+5+5=15
🔍🧮 Did Euli miscalculate? Solution
8+6=15→14
17−8=9
9+7=16
16−9=6→7
7+8=15
14−6=7→8
6+9=15
13−5=7→8
Page 122Compare lengths · Calendar · Calculation
📏 The length of the pencils Solution
📖 Which day is it? Solution
1. 7
2. 7
3. 12
4. 14
➖ Minus up to 20 Solution
18−5=13
19−7=12
17−4=13
20−6=14
16−9=7
15−8=7
14−5=9
13−4=9
12−7=5
19−9=10
18−8=10
17−9=8
Page 123Dominoes · Symmetry · Golem
👆➕ Add up the dominoes Solution
🎨 Symmetry pro Solution
➕ Add in the golem pyramid Solution
Page 124Count containers · Shopping
👆➕ Add three containers together Solution
➕ Numerion goes shopping Solution
1. $16 13¢
2. $14 14¢
3. $15 15¢
4. $16 12¢
Page 125Calculation · Calendar · Money
🧮 Plus and minus up to 20 Solution
12+5=17
18−4=14
9+8=17
15−6=9
13+6=19
17−5=12
11+7=18
16−8=8
8+9=17
14−7=7
10+8=18
19−6=13
📖 Which day is it? Solution
1. 13
2. 8
3. 16
4. 12
👆➕ How much money is here? Solution
Page 126Table · Calculation · Word problems
➖ Big minus table Solution
🧮 Plus and minus Solution
11+5=16
18−7=11
12+6=18
16−7=9
7+8=15
14−6=8
13+4=17
20−13=7
11+4=15
11+6=17
17−5=12
12+7=19
🧮 At the toy store Solution
- 1. $13
- 2. 8
- 3. 20
- 4. 4
- 5. 17
Page 127Shopping · Swap · Magic potion
🧮 How much change? Solution
1. $16
2. $14
3. $12
4. $18
➕ Swapping makes it easier! Solution
3+8=11↔8+3=11
5+6=11↔6+5=11
4+7=11↔7+4=11
2+9=11↔9+2=11
6+7=13↔7+6=13
5+8=13↔8+5=13
4+9=13↔9+4=13
7+8=15↔8+7=15
➕ Number of ingredients for magic recipes Solution
1. 16
2. 18
3. 18
4. 16
5. 18
6. 18
7. 18
8. 17
Page 128Calculation · Money · Cards
🧮 Tricky - plus and minus Solution
7+6=13
14−8=6
8+7=15
16−7=9
5+6=11
17−8=9
7+7=14
15−7=8
9+8=17
13−5=8
12+7=19
18−9=9
👆➕ Which bills and coins? Solution
➕ Find the secret card Solution
Page 129Money
👆➕ Counting money Solution
👆➕ Which bills and coins do you need? Solution
Page 130Calculation · Magic code · Blocks
🧮 What is missing? Solution
8+5=13
8+7=15
14−6=8
13−5=8
9+7=16
9+6=15
15−8=7
15−9=6
8+5=13
8+6=14
7+5=12
13−7=6
🔍🧮 Crack the code step by step Solution
🌟 = 7🌙 = 9⚡ = 4🦉 = 6
🌟+🌟=14=7
⚡+🦉=10=9
🌟+🦉=4
🌟+🌙=16=6
🌙+⚡=13
🌟+⚡=13
🌙−⚡=5=11
🌙+🦉=15
🌟−⚡=3
👆➕ Counting blocks Solution
Page 131Money · Word problems
👆➕ Counting money Solution
🧮 At the swimming pool Solution
- 1. 17
- 2. 7
- 3. 16
- 4. 7
- 5. 14
Page 132Time · Shopping
🕐 Full and half hours Solution
➕ Euli and Numerion go shopping Solution
1. $11 16¢
2. $17 17¢
3. $12 20¢
4. $11 16¢
Page 133Money · Word problems
👆➕ Which bills and coins? Solution
🧮 Problems to think about Solution
- 1. 13
- 2. 15
- 3. 7
- 4. 8
- 5. 13
Page 134Money · Magic picture
👆➕ Which bills and coins do you need? Solution
🎨 Number magic Solution
Page 135Time · Word problems
🕐 Mixed clock times Solution
🧮 At the supermarket Solution
- 1. 10 → 1
- 2. 4 → 6
- 3. 6 → 6
- 4. 10 → 15
- 5. 9 → 4
Page 137Boss Level Numbers to 20
A Boss level: numbers up to 20 Solution
17
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