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Addition
Subtraction
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10

5 + 5 + 5 + 8

23

10

MENTAL MATH

23-9

14

10

MENTAL MATH

5 + 245 = ? 

250
10

MENTAL MATH

2x 4 = 

8

10

18 divided 9

2

20

Mental Math

50 + 50 + 10

110

20

MENTAL MATH

60 - 10 = 

50

20

MENTAL MATH

98 + 4 = 

102

20

MENTAL MATH

9x5

45

20

MENTAL MATH

400 / 5 =

80

30

Mental Math

100 + 900 =

1000

30

MENTAL MATH

9 - 15 

-6

30

MENTAL MATH

5 - 8 

-3
30

MENTAL MATH

13 x 3  = 

39

30

Mental Math

54 / 6 =

9

40

MENTAL MATH

250-150

100

40

MENTAL MATH

37 + 63 = 

100

40

MENTAL MATH 

 9 x 2 = 

18

40

140/10

14

50

Mental Math

865 + 10

875

50

MENTAL MATH

15-8

7
50

MENTAL MATH

26 - 5

21

50

MENTAL MATH

5 x 3 = 

15

50

1500 divided by 10

150