For written addition you calculate column by column.
The ones go under the ones, the tens under the tens, the hundreds under the hundreds and so on.
This is how you do it:
1. First add the ones and write the result on the far right.
2. Then add all the other places from right to left.
3. In some tasks you add three numbers at once.
If the result of a column is bigger than 9, a carry goes into the next column.
The numbers written in show the answer.
Example
For parents
What does this exercise practice?
This exercise trains place value understanding and step-by-step calculating with big numbers up to 1,000,000.
Common pitfalls
Children often forget the carry or write the places mixed up. It helps to write big numbers neatly place under place and line the digits up from right to left.
How to practice at home
Add two big amounts from a leaflet or bank statement together in writing.
Related: Number Sentences with a Gap, Mental Math with Jottings, Column subtraction