Chapter 2: Fractions, Decimals, and Percents

What is 1/4 written as a percent?

• 14%

• 25%

• 30%

• 40%

Answer explanation

To convert 1/4 to a percent, multiply by 100. (1/4) * 100 = 25%. Therefore, 1/4 written as a percent is 25%, which is the correct answer.

What is 575% written as a mixed number?

• 5-3/4

• 5-1/4

• 57-1/2

• 500-3/4

Answer explanation

To convert 575% to a mixed number, divide 575 by 100, which gives 5.75. The whole number is 5, and 0.75 as a fraction is 3/4. Thus, 575% as a mixed number is 5-3/4.

What is 0.399 written as a percent?

• 399%

• 39.9%

• 3.99%

• 0.00399%

Answer explanation

To convert 0.399 to a percent, multiply by 100. Thus, 0.399 x 100 = 39.9%. Therefore, the correct answer is 39.9%.

What is 86% written as a decimal?

• 86

• 8.6

• 0.86

• 0.086

Answer explanation

To convert a percentage to a decimal, divide by 100. Thus, 86% becomes 86 ÷ 100 = 0.86. Therefore, the correct answer is 0.86.

What is 32% of 60?

• 19.2

• 32

• 187.5

• 192

Answer explanation

To find 32% of 60, multiply 60 by 0.32: 60 * 0.32 = 19.2. Therefore, the correct answer is 19.2.

Tags

CCSS.6.RP.A.3C

Which fraction is less than 1/2 ?

• 3/8

• 5/8

• 5/7

• 9/16

Answer explanation

To determine which fraction is less than 1/2, we can compare each option. 3/8 is equal to 0.375, which is less than 0.5. The other options (5/8, 5/7, 9/16) are greater than 1/2. Thus, 3/8 is the correct answer.

Tags

CCSS.4.NF.A.2

16 is 20% of what number?

• 40

• 80

• 96

• 125

Answer explanation

To find the number, divide 16 by 20% (0.2). So, 16 ÷ 0.2 = 80. Therefore, 16 is 20% of 80.

Tags

CCSS.6.RP.A.3C

Decimal to Percent

• Divide top number by the bottom number

• Say the decimal. Write it in fraction form. Simplify.

• Move decimal point two places to the right.

• Move the decimal point two times to the left.

Answer explanation

To convert a decimal to a percent, you move the decimal point two places to the right. This effectively multiplies the decimal by 100, giving you the percentage value.

Tags

CCSS.5.NBT.A.2

Percent to Decimal

• Move decimal point two places to the right.

• Put percent over 100 and simplify.

• Make it a decimal, then move decimal point two places to the right.

• Move the decimal point two times to the left.

Answer explanation

To convert a percent to a decimal, you move the decimal point two places to the left. For example, 25% becomes 0.25. This is the correct method, as opposed to moving it to the right or other methods.

Tags

CCSS.5.NBT.A.2

Write the fraction 3/8 as a decimal. 

• 37.5

• 2.6666...

• 0.375

• 0.26666...

Answer explanation

To convert the fraction 3/8 to a decimal, divide 3 by 8. This results in 0.375, which is the correct answer. The other options do not represent the value of 3/8.

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1