Free Printable Lesson 21 Practice

1.

Convert to Standard Form: $9.34\ \times10^6$

a)

9,340,000

b)

934,000,000

c)

93,400

d)

0.00000934

2.

Convert to Standard Form: $6.13\ \times10^{-3}$

a)

613,000

b)

0.006.13

c)

0.000613

d)

0.00613

3.

Convert to Standard Form: $8.45\ \times10^{-5}$

a)

0.0000845

b)

0.00000845

c)

0.00845

d)

845,000

4.

Write an estimate using powers of 10.

784,000

a)

$7\ \times10^3$

b)

$8\ \times\ 10^4$

c)

$7\ \times10^5$

d)

$8\times10^5$

5.

Write an estimate using powers of 10.

0.000623

a)

$7\ \times10^3$

b)

$6\ \times10^{-4}$

c)

$6\ \times10^{-3}$

d)

$7\ \times10^{-4}$

6.

Write an estimate using powers of 10.

4210000

a)

$4\ \times10^6$

b)

$4\ \times10^4$

c)

$5\ \times10^5$

d)

$421\ \times10^4$

7.

Write an estimate using powers of 10.

0.0067

a)

$7\ \times10^3$

b)

$7\ \times10^{-2}$

c)

$7\ \times10^{-3}$

d)

$6\ \times10^{-3}$

8.

Which number is greater?

a)

$3\ \times10^6$

b)

$2\ \times10^8$

c)

$4\ \times10^5$

d)

$5\ \times10^3$

9.

Which number is greater?

a)

$12\ \times10^{13}$

b)

$13\ \times10^9$

c)

$14\ \times10^{11}$

d)

$11\ \times10^8$

10.

Convert to Standard Form: $7.84\ \times10^5$

a)

78,400,000

b)

784,000

c)

78,400

d)

0.0000784

Lesson 21 Practice - Powers of 10

Total questions: 10

Worksheet time: 19mins

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