NAT Reviewer Mathematics 6

What is the value of the digit 7 in the number 5,730,824?

• 7,000

• 70,000

• 700,000

• 7,000,000

Which of the following is equal to 12.345 × 10³?

• 0.012345

• 1,234.5

• 12,345

• 123,450

How is 7/8 written as a decimal?

• 0.825

• 0.875

• 0.75

• 0.078

Which of the following fractions is equivalent to 15/20?

• 3/5

• 3/4

• 4/5

• 5/4

Convert 3.75 to a mixed number in lowest terms.

• 3 3/4

• 3 5/7

• 3 6/8

• 3 7/10

Arrange the following numbers from least to greatest: 0.52, 0.502, 0.52, 0.5.

• 0.5, 0.502, 0.52, 0.52

• 0.5, 0.502, 0.52, 0.52

• 0.502, 0.5, 0.52, 0.52

• 0.52, 0.52, 0.502, 0.5

What is the prime factorization of 84?

• 2² × 3 × 7

• 2 × 2 × 3 × 7

• 4 × 3 × 7

• 2 × 42

Which of the following is the least common multiple (LCM) of 12 and 18?

• 6

• 24

• 36

• 216

What is the greatest common factor (GCF) of 36 and 48?

• 6

• 12

• 24

• 36

Which of the following is an irrational number?

• 0.25

• 1.5

• √2

• 22/7