Workbook Detail
Error Analysis Percentage Errors — Set 100
01
Decrease 400 by 10% = ?
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360
02
80% of 80 = ?
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64
03
16 is 40% of what number?
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40
04
2 is 5% of what number?
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40
05
20% of 500 = ?
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100
06
32 is 80% of what number?
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40
07
48 is 40% of what number?
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120
08
Increase 200 by 60% = ?
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320
09
5 is 25% of what number?
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20
10
25% of 80 = ?
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20
11
40% of 40 = ?
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16
12
What percent is 150 of 200?
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75
13
What percent is 40 of 200?
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20
14
300 is 75% of what number?
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400
15
45 is 75% of what number?
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60
16
What percent is 48 of 120?
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40
17
40% of 120 = ?
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48
18
Increase 20 by 20% = ?
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24
19
Decrease 500 by 80% = ?
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100
20
40 is 20% of what number?
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200