Mental Math

Addition

5

5 + 5 + 5 = ?

15

10

10 + 5 + 2 = ?

17

15

24 + 34 + 40 = ?

128

20

200 + 250 + 350 + 7 = ? 

807

25

Use your boards for this one! 

234 + 342 + 423 + 1 = ?

1000

Subtraction

5

5 - 1 = ?

4

10

MENTAL MATH

60-10

50

15

MENTAL MATH

81-17=

64

20

MENTAL MATH

250-150-6

94

25

MENTAL MATH 

1311-235=

1076

Add/Sub

5

MENTAL MATH 

5+245-30

220

10

MENTAL MATH 

98+4-16

I'm weird not going to lie. Queen

15

MENTAL MATH 

37+63-54-42

4

20

MENTAL MATH 

5-4+32-12+8-4

25

25

MENTAL MATH 

10+15-3-1+21+37-25-6

48

Multiplication

5

MENTAL MATH 

2 x 4

SSSSSSSSSSSSSSSSSSSSSSSSSSS

10

MENTAL MATH 

9 x 5

45

15

MENTAL MATH 

13 x 3

39

20

MENTAL MATH 

18 x 15

270

25

MENTAL MATH 

5 x 3 x 9

135

Divide

5

MENTAL MATH 

63/7

9

10

MENTAL MATH 

40/5=

8

15

MENTAL MATH 

54/6

9

20

MENTAL MATH 

140/20

7

25

MENTAL MATH 

165/5=

33

Squared

5

MENTAL MATH 

4²

16

10

MENTAL MATH 

6²

36

15

MENTAL MATH 

9²=

81

20

MENTAL MATH 

11²

121

25

MENTAL MATH 

20²

400