Grade 3- Math - Chapter 3 Review

Varying Vocabulary

100

True or False?

Mental math is the kind of math you can do in your head?

True

200

True or False?

You have to round numbers when finding an estimate.

True

300

True or False?

The unknown is the missing number in a math problem.

True

400

Name the type of operations that can undo each other.

Inverse Operations

500

Name the operation we use to take one number from another.

Subtraction

Minus

Crazy Comparisons

100

564 O 565

<

200

1,526 O 4,699

<

300

125+12 O 128+7

>

400

$5000-$233 O $6542-$1775

=

500

122 - 72 O 78 -28

50 = 50

Silly Subtraction

100

42-29

13

200

1,400-1,328

72

300

126-68

56

400

8,423-7,299

1,124

500

8,005 - 2,544

5,461

Round, THEN Subtract

100

TENS

345-278

350 - 280 = 70

200

TENS

4,562-1,977

4,560 - 1,980 = 2580

300

HUNDREDS

1,488-1,249

1,500 - 1,200 = 300

400

HUNDREDS

14,977-6,449

15,000 - 6,400 = 8,600

500

HUNDREDS

2,219 - 1,109

2,200 - 1,100 = 1,100

Terrible Toss-Ups

100

What is Mr. Powell's favorite color?

Blue

200

Add, then subtract.

128 (128 +256) =__________

_______ - 256 = __________

256

300

Where does Mr. Powell like getting things from?

Amazon

400

What is the answer to a subtraction problem?

The Difference

500

What is one of Mr. Powell's favorite movies?