Euli has been calculating, but not every result is right!
Work it out yourself and write the right result next to it.
Example: Euli writes 294,666 + 137,153 = 431,919.
Correct is: 294,666 + 137,153 = 431,819.
The numbers written in show the answer.
Example
294666+137153=431919→431819
692146−456964=235182
318425+240533=558958
805300−247180=558220→558120
For parents
What does this exercise practice?
Checking results critically instead of simply believing them. That trains checking your own work with big numbers too.
Common pitfalls
Children sometimes take the wrong answer as their starting point. Calculate it yourself first, then compare!
How to practice at home
Write down a sum with big numbers and one small mistake and let your child find the mistake.
Related: Number Sentences with a Gap, Estimating and Rounding to Check