hard Set 1 Form Exercise
01
39 ÷ 3 = ?
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13

02
20% of 60 = ?
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12

03
67 × 9 = ?
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603

04
4/6 - 3/6 = ?
05
3.1 - 1.9 = ?
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1.2

06
82 × 5 = ?
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410

07
640 ÷ 8 = ?
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80

08
x + 19 = 27, x = ?
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8

09
2 × x = 20, x = ?
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10

10
4.6 - 1.6 = ?
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3

11
7.8 - 0.5 = ?
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7.3

12
7.8 - 0.6 = ?
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7.2

13
(5 + 5) × 4 = ?
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40

14
47 × 2 = ?
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94

15
5^3 = ?
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125

16
6 × x = 30, x = ?
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5

17
6/7 - 4/7 = ?
18
GCF(25, 20) = ?
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5

19
3 + 2^2 = ?
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7

20
50% of 44 = ?
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22