Multiplying

Estimating

100

Write an expression for the best estimate of 38 x 82

40 x 80

200

Write an expression for the best estimate of 127 x 74

130 x 70

300

What is the best estimate for 66 x 37?

2,800

400

What is the best estimate for 254 x 52?

12,500

500

What is the best estimate for 3,498 x 2,907?

9,000,000

Exponents

100

67 x 10²

6,700

200

48 x 10⁴

480,000

300

295 x 10³

295,000

400

4.23 x 10²

423

500

38.608 x 10⁵

3,860,800

Multiplying

100

26 x 75

1,950

200

348 x 24

8,352

300

976 x 87

84,912

400

65,729 x 9

591,561

500

307 x 654

200,778

Fractions

100

3/8 + 3/8

6/8 or 3/4

200

2/4 + 2/8

6/8 or 3/4

300

1/3 - 1/12

3/12 or 1/4

400

7/9 - 2/6

8/18 or 4/9

500

1/4 + 1/5 + 3/10

15/20 or 3/4

Random!!

100

How many inches are in 2 feet?

24 in.

200

Find the next two terms of the pattern:

0.004, 0.04, 0.4, ___, ___

4, 40

300

Find the perimeter of a rectangle with a length of 12.3 ft and width of 28.6. 

81.8 ft.

400

7 + 8 x 5 - 4 x 4

31

500

391.2 divided by 12

32.6