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Math Coach Amy
Amy Ferguson Moncure

7th Grade Math ยท Unit 2

Percent to
Decimal

Write a whole-number percent as a decimal.

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Key Ideas Easy Medium Medium 2
What to Remember

A percent is hundredths

25% means 25 hundredths.

25% = 0.25

A one-digit percent needs a zero in the tenths place.

7% = 0.07

100% is 1

100% as a decimal = 1

Percents over 100%

100% as a decimal = 1, so 125% = 1.25

Easy

Percents from 1% to 100%

A percent is hundredths.

Example
Write 36% as a decimal.

A percent is hundredths.

36% = 0.36

Answer: 0.36

1
Write 1% as a decimal.
Show Answer

A percent is hundredths.

The percent is one digit, so the tenths place is 0.

1% = 0.01

Answer: 0.01

2
Write 8% as a decimal.
Show Answer

A percent is hundredths.

The percent is one digit, so the tenths place is 0.

8% = 0.08

Answer: 0.08

3
Write 13% as a decimal.
Show Answer

A percent is hundredths.

13% = 0.13

Answer: 0.13

4
Write 20% as a decimal.
Show Answer

A percent is hundredths.

20% = 0.20

Answer: 0.20

5
Write 34% as a decimal.
Show Answer

A percent is hundredths.

34% = 0.34

Answer: 0.34

6
Write 46% as a decimal.
Show Answer

A percent is hundredths.

46% = 0.46

Answer: 0.46

7
Write 50% as a decimal.
Show Answer

A percent is hundredths.

50% = 0.50

Answer: 0.50

8
Write 67% as a decimal.
Show Answer

A percent is hundredths.

67% = 0.67

Answer: 0.67

9
Write 80% as a decimal.
Show Answer

A percent is hundredths.

80% = 0.80

Answer: 0.80

10
Write 99% as a decimal.
Show Answer

A percent is hundredths.

99% = 0.99

Answer: 0.99

Medium

Percents from 101% to 199%

100% as a decimal = 1, so 125% = 1.25.

Example
Write 148% as a decimal.

100% as a decimal = 1

148% = 1.48

Answer: 1.48

1
Write 103% as a decimal.
Show Answer

100% as a decimal = 1

The tens digit is 0, so the tenths place is 0.

103% = 1.03

Answer: 1.03

2
Write 108% as a decimal.
Show Answer

100% as a decimal = 1

The tens digit is 0, so the tenths place is 0.

108% = 1.08

Answer: 1.08

3
Write 112% as a decimal.
Show Answer

100% as a decimal = 1

112% = 1.12

Answer: 1.12

4
Write 120% as a decimal.
Show Answer

100% as a decimal = 1

120% = 1.20

Answer: 1.20

5
Write 135% as a decimal.
Show Answer

100% as a decimal = 1

135% = 1.35

Answer: 1.35

6
Write 150% as a decimal.
Show Answer

100% as a decimal = 1

150% = 1.50

Answer: 1.50

7
Write 164% as a decimal.
Show Answer

100% as a decimal = 1

164% = 1.64

Answer: 1.64

8
Write 175% as a decimal.
Show Answer

100% as a decimal = 1

175% = 1.75

Answer: 1.75

9
Write 180% as a decimal.
Show Answer

100% as a decimal = 1

180% = 1.80

Answer: 1.80

10
Write 199% as a decimal.
Show Answer

100% as a decimal = 1

199% = 1.99

Answer: 1.99

Medium 2

Percents from 101% to 400%

100% as a decimal = 1. The whole number can be greater than 1.

Example
Write 250% as a decimal.

100% as a decimal = 1

250% = 2.50

Answer: 2.50

1
Write 106% as a decimal.
Show Answer

100% as a decimal = 1

The tens digit is 0, so the tenths place is 0.

106% = 1.06

Answer: 1.06

2
Write 119% as a decimal.
Show Answer

100% as a decimal = 1

119% = 1.19

Answer: 1.19

3
Write 170% as a decimal.
Show Answer

100% as a decimal = 1

170% = 1.70

Answer: 1.70

4
Write 200% as a decimal.
Show Answer

100% as a decimal = 1

200% = 2

Answer: 2

5
Write 204% as a decimal.
Show Answer

100% as a decimal = 1

The tens digit is 0, so the tenths place is 0.

204% = 2.04

Answer: 2.04

6
Write 230% as a decimal.
Show Answer

100% as a decimal = 1

230% = 2.30

Answer: 2.30

7
Write 275% as a decimal.
Show Answer

100% as a decimal = 1

275% = 2.75

Answer: 2.75

8
Write 308% as a decimal.
Show Answer

100% as a decimal = 1

The tens digit is 0, so the tenths place is 0.

308% = 3.08

Answer: 3.08

9
Write 348% as a decimal.
Show Answer

100% as a decimal = 1

348% = 3.48

Answer: 3.48

10
Write 400% as a decimal.
Show Answer

100% as a decimal = 1

400% = 4

Answer: 4

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