Chapter 1 Review

Tell whether the sum is even or odd for each problem.

• odd

• 5+8

• even

• 9 + 3

• odd

• 6 + 7

• even

• 9 + 5

Select the equations that show the Associative Property of Addition. Mark all that apply.

• 4 + (26 + 48) + 2 = (4 + 26) + (48 + 2)

• 8 + 14 + 21 = 14 + 8 + 21

• 8 + (12 + 1) = (8 + 12) + 1

• (12 + 1) + 5 = (1 + 12) + 5

Select the numbers that round to 300 when rounded to the nearest hundred. Mark all that apply.

• 238

• 250

• 283

• 342

• 359

What is 486 rounded to the nearest 10?

Drag each equation that estimates to 600 or 700.

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Groups:

(a) 600

,

(b) 700

• 393 + 225 =

• 352 + 328 =

• 481 + 215 =

• 309 + 335 =

Diana sold 336 muffins at the bake sale. Bob sold 287 muffins. Bob estimates that he sold 50 fewer muffins than Diana. How did he estimate?

• He rounded to the nearest 10.

• He rounded to the nearest 100.

Ms. Martin’s class read about 100 more books than Mr. Lopez’s class.

• True

• False

The 3 classes read over 900 books altogether.

• True

• False

Mrs. Wang’s class read about 50 fewer books than Mr. Lopez’s class.

• True

• False

Ms. Martin’s class and Mrs. Wang’s class read about 700 books.

• True

• False