Worked example
What is 25% of 80?
Answer & why
Answer: 20
25% is one quarter; 80 ÷ 4 = 20.
Grade 6 · Math
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Calculate familiar percentages of whole-number quantities.
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Question 1
What is 20% of 110?
- 24
- 21
- 22
- 25
A hint
Write the percent as a fraction out of 100 or as a decimal.
Answer & why
Answer: 22
20% means 20/100. 110 × = 22.
Question 2
What is 50% of 80?
- 39
- 38
- 40
- 41
A hint
Write the percent as a fraction out of 100 or as a decimal.
Answer & why
Answer: 40
50% means 50/100. 80 × = 40.
Question 3
What is 75% of 100?
- 73
- 77
- 74
- 75
A hint
Write the percent as a fraction out of 100 or as a decimal.
Answer & why
Answer: 75
75% means 75/100. 100 × = 75.
Question 4
What is 10% of 140?
- 14
- 12
- 16
- 15
A hint
Write the percent as a fraction out of 100 or as a decimal.
Answer & why
Answer: 14
10% means 10/100. 140 × = 14.
Question 5
What is 75% of 50?
- 41.5
- 40.5
- 37.5
- 38.5
A hint
Write the percent as a fraction out of 100 or as a decimal.
Answer & why
Answer: 37.5
75% means 75/100. 50 × = 37.5.
Question 6
What is 10% of 110?
- 9
- 12
- 11
- 15
A hint
Write the percent as a fraction out of 100 or as a decimal.
Answer & why
Answer: 11
10% means 10/100. 110 × = 11.
Question 7
What is 20% of 50?
- 11
- 10
- 8
- 14
A hint
Write the percent as a fraction out of 100 or as a decimal.
Answer & why
Answer: 10
20% means 20/100. 50 × = 10.
Question 8
What is 50% of 170?
- 85
- 87
- 88
- 89
A hint
Write the percent as a fraction out of 100 or as a decimal.
Answer & why
Answer: 85
50% means 50/100. 170 × = 85.