Lessons 1.5 and 4.1

Write the expression 53.7124 x 10³ as a single number.

• 53.7124

• 537.124

• 5371.24

• 53712.4

Nathan's correct solution to a math problem was 903. Which math problem did he solve?

• 9.03 x 10³

• 10³ - 9.03

• 10³ + 9.03

• 10² x 9.03

There were about 48,000 people at a basketball game. How can 48,000 be written using a power of 10?

• 48 + 10³

• 48 X 10³

• 48 + 10²

• 48 x 10⁵

A company is preparing packets for an upcoming conference. Each packet of conference materials costs the company $12 to produce. Choose the numbers that correctly complete the sentence.

The total cost of 10 packets = A

The total cost of 100 packets = B

The total cost of 1,000 packets = C

• A=$120

  B=$1,200

  C=$12,000

• A=$12

  B=$120

  C=$1,200

• A=$1.2

  B=$12

  C=$120

• A=$12.00

  B=$1200

  C=$12,000

What is the value of this expression?

3.5 x 10³

• 350

• 35

• 3,500

• 35,000

Which of the following correctly completes this equation?

0.63 x ______ = 630,000

• 10³

• 10⁴

• 10⁶

• 10⁵

Which of the following equations is correct?

• 10⁴ x 0.24 = 240,000

• 10⁵ x 0.24 = 240,000

• 10⁵ x 2.4 = 240,000

• 10⁴ x 2.4 = 240,000

For homework Javier has to solve the equation below.

7.75 x n = 77,500

What value of n will make the equation true?

• 10²

• 10⁴

• 10³

• 10⁵

Ashley's car weighs more than Joseph's car. Joseph wrote the following equation for the weight of his car.

3.24 x 10² pounds

Which number below shows how much Ashley's car could weigh?

• 3.25 pounds

• 32.4 pounds

• 324 pounds

• 325 pounds

(7 x 3) x 10³

• 210

• 2,100

• 21

• 21,000