Amy writes an answer to the calculation below. 57 take away 31 equals 26. Now write an addition to check Amy’s answer.
Amy started with 57, she took away 31, and she was left with 26. We need to write an addition sentence using the same three numbers. We know the total of these two numbers is 57. And 31 and 26 make 57. We could also swap these numbers around to say 26 plus 31 equals 57. Amy wrote an answer to her calculation 57 take away 31 equals 26.
We wrote an addition sentence to check Amy’s answer. 26 plus 31 equals 57. We could also write 31 plus 26 equals 57. Both answers would be correct.