Topic 4 Review

Multiply 2-Digit Numbers by Multiples of Ten

100

20 x 30

600

200

60 x 40

2,400

300

______ x 80 = 1,600

20

400

90 x _______ = 8,100

90

500

70 x ______ = 4,200

60

Estimate to Solve

100

24 x 18

20 x 20 = 400

200

66 x 41

70 x 40 = 2,800

300

82 x 36

80 x 40 = 3,200

400

54 x 18

50 x 20 = 1,000

500

Choose all that are the best estimate of 32 x 14

a. 30 x 20

b. 30 x 10

c. 10 x 30

d. 40 x 10

B and C because of the communitative property

2-Digit by 2-Digit Multiplication

100

14 x 21

294

200

14 x 12

168

300

18 x 18

324

400

15 x 13

195

500

24 x 13

312

More 2-Digit by 2-Digit Multiplication

100

18 x 25

450

200

41 x 12

492

300

22 x 88

1,936

400

58 x 19

1,102

500

29 x 50

1,450

How well do you know your teacher?

100

What is Mrs. Keys first name?

Brooke

200

When is Mrs. Keys' birthday?

October 19th

300

What are Mrs. Keys' dogs named?

Yeti and Luna

400

What is Mrs. Keys' scared of?

Snakes!

500

What is Mrs. Keys' favorite coffee from Starbucks?

caramel macchiato (but seasonally, a pumpkin spice latte)