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Mental Math

English 16 Public

Speed calculation

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24 + 14 - 9 =

29

15

37 - 12 + 8 =

33

15

57 + 8 - 15 =

50

15

34 - 17 + 13 =

30

15

14 + 8 - 11 =

11

15

34 + 16 - 25 =

25

15

19 + 26 - 15 =

30

15

34 - 16 - 9 =

9

15

61 - 36 - 15 =

10

15

49 - 24 - 7 =

18

15

80 - 15 - 30 =

35

15

25 + 7 + 16 =

48

15

31 + 23 + 12 =

66

15

21 + 10 + 9 =

40

15

13 + 15 + 12 =

40

15

15 + 26 + 37 =

78

15