9.11.20- Chapter 2 Unit Review

Identify the property of addition for the problem below.

5 + (4 + 6) = 15

Identify the property of addition for the problem below.

15 + 4 + 6 = 25 6 + 4 + 15 = 25

Identify the property of addition for the problem below.

510 + 0 = 510

Janae baked 58 sugar cookies and 69 peanut butter cookies.

How many cookies did Janae bake in all?

Estimate by rounding to the nearest ten. 35 + 45 = ______

Estimate the difference by rounding to the nearest hundred. 912 - 252 = ______

A pet supply store has 627 bags of dog food and 300 bags of cat food. How many more bags of dog food are there than cat food?