Area Model

Rounding

Single by Double

Double by Double

Vocab

100

Draw and use an area model to solve 16 x 7

112

100

Round 345 to the nearest hundred

300

100

Multiply 52 x 4

208

100

Multiply 20 x 20

400

100

What are the numbers called that we multiply together?

Factors

200

Draw and use an area model to solve 56 x 9

504

200

Round 7,623 to the nearest thousand.

8,000

200

Multiply 65 x 4

260

200

Multiply 23 x 24

552

200

What is the answer to a multiplication problem?

Product

300

Draw and use an area model to solve 85 x 4

340

300

Round 34,512 to the nearest hundred

34,500

300

Multiply 78 x 5

390

300

Multiply 76 x 14

1,064

300

What property says we can switch the order of the factors and still get the same answer?

The Commutative Property (of Multiplication)

400

Draw and use an area model to solve 22 x 12

264

400

Round 87,349 to the nearest thousand.

87,000

400

Multiply 79 x 8

632

400

Multiply 84 x 13

1,092

400

What property states that we can regroup the factors of a multiplication problem?

The Associative Property (of Multiplication)

500

Draw and use an area model to solve 24 x 23

552

500

Round 45,829 to the nearest ten-thousand.

50,000

500

Multiply 93 x 9

837

500

Multiply 92 x 10

920

500

What special holiday is coming up very very soon?

CHRISTMAS!! The Birth of Jesus!

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