Math Review Week 10

Select all of the PRIME numbers.

• 58

• 47

• 11

• 102

What are all of the prime factors for 30?

• 2, 3, 5

• 2, 2, 2

• 5, 6

• 2, 15

Complete the equation to match the model.

0.84 ÷ 7 = ____

• 1.2

• 0.12

• 0.012

• 0.0012

Which expression will give a better estimate of

33.1 ÷ 4 = ?

• 32 ÷ 4

• 36 ÷ 4

Which expression will give a better estimate of

559.8 ÷ 73 = ?

• 560 ÷ 70

• 560 ÷ 80

A cell phone company has a total of 86,056 customers across the world. If 29,869 of its customers live in the United States, about how many of its customers live in other countries? Choose the better estimate.

• 56,187

• 115,925

• 56,000

• 116,000

​ (a)   is greater than the one shown in this diagram.

• 0.4
• 0.1
• 0.19
• 0.17

Write 1 / 4 as a decimal number.

• 0.04

• 0.14

• 0.25

• 0.75

Reorder the following decimals in order of GREATEST to LEAST.

• 0.1

• 0.13

• 0.2

• 0.22

• 0.013

Fill in the missing number.