Place Value and Powers of 10 (Sub Unit Quiz 1 - Unit 6)

Multiplying by Powers of 10

100

True or False?

When multiplying by a power of 10 you always add as many zeros as the exponent says.

False

200

Is this a power of 10?

4¹⁰

No

(Powers of 10 must have BASES of 10)

300

0.002 x 10²  = ____

0.2

400

0.03 x 10³ = ____

30

500

0.18 x 10⁴ = 

1,800

Write as an expression using Powers of 10

100

What is 10 x 10 x 10 x 10

10⁴

200

Rewrite using powers of 10

40 x 10,000

40 x 10⁴

300

100,000

10⁵

400

What is the answer to:

50 x 10³

50,000

500

What is the answer to:

6.7 x 10⁴

67,000

Powers of 10

100

When you multiply a number by a power of 10, you move the decimal to the ________

right

200

Where is the decimal in any whole number?

at the end

300

____ x 0.006 = 0.06

10¹

400

0.007 x ___ = 7

10³

500

8 x 100 = 8 x 10² = ____

800

Dividing by Powers of 10

100

When you divide a number by a power of 10, you move the decimal to the ________.

Left

200

5.2 ÷ 10

0.52

300

520 ÷ 10² 

5.2 

400

52 ÷ 10³

0.052

500

5200 ÷ 10¹

520