Question

Bill says that can add 23 and 40 without regrouping is bill correct? How do you know?

Answer 1

If Bill says that he can add 23 and 40 without regrouping he is correct. Both numbers can easily be added in your head.

Answer 2

The problem of adding 23 and 40 is trivial. Since 2 + 4 = 6, we add the tens column and get 60; there is only 3 in the ones column so the answer is 63.

Answer 3

0 plus 3 is 3 so that's the ones and 4 plus 2 equals 6 the number equaling 63 no regrouping needed