2-digit subtraction
regroup if you need to.
write the difference.

1. tens | ones
[ ] | [ ]
|
4 | 7
- 2 | -8
|

What is an alternate exterior angle

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent