Topic 3 Review

Vocab / Bonus

100

An estimate that is less than the actual answer

Underestimate

200

An estimate that is greater than the actual answer

Overestimate

300

A letter, such as n, that represents a number in an expression or equation

Variable

400

What is Mrs. McDermott's husband's name?

Brandon

500

What town does Mrs. Juleen live in?

Amery

Estimation

100

29 X 688

30 X 700 = 21, 000

200

43 X 108 

40 X 100 = 4,000

300

408 X 676

400 X 700 = 280,000

400

290 X 12

300 X 10 = 3,000

500

790 x 397

800 x 400 = 320,000

By 1 Multiplication

100

25 X 7 

175 

200

28 X 3

84

300

731 X 9

6,579

400

413 X 6 

2,478

500

2,311 X 6

13,866

2 by 2 Multiplication

100

27 X 12

324

200

38 X 19 

722

300

12 X 22

264

400

41 X 23

943

500

67 X 57

1,809

3 by 2 Multiplication

100

106 X 7

742

200

222 X 75

16,650

300

360 X 18

6, 480

400

312 X 14

4,368

500

659 X 17

11,203