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

Can someone check my answer? you

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.

3382-299=3383- ? fill in the blank?