Topic A Review!

Place Value

100

What does the 9 represent in 8,903,756

9 hundred thousands

200

_________ is 10 times as much as 70

700

300

The 5 in 3425 represents what

5 ones

400

5 thousands is _______ times as much as 5 ones

1000

500

Write the following number in expanded form: 79,805

70000 + 9000 + 800 + 5

Exponents

100

What is 10000 in exponential form

10⁴

200

What is the answer to 100 x 1000 in exponential form?

10⁵

300

3 x ______ = 3000

10³

400

6,000,000 = 6 x ____

10⁶

500

9,180,000 ÷ _______ = 9180

10³

Estimation

100

Estimate 7110 x 23

7000 x 20 = 140000

200

Estimate 129 ÷ 4

120 ÷ 4 = 30

300

Estimate 35,471 ÷ 9 

35,000 ÷ 10 = 3,500

400

Estimate 32 x 18 

30 x 20 = 600

500

Estimate 4609 ÷ 59

4800 ÷ 60 = 80

Conversions

100

6985 g = ______ mg

6,985,000 mg

200

_______ cm = 308 m

30,800 cm

300

________ mL = 1,500 cL

15,000 mL

400

480 m = ________ mm

480,000 mm

500

89 kg = ________ mg

89,000,000 mg

Preview of Topic B

100

446 x 81 =

36,126

200

23 x 30 =

690

300

28 x 36 =

1,764

400

73,613 x 5 =

368,065

500

704 x 236 =

166,144