Show:
Addition
Subtraction
Add/Sub
Multiplication
100

Mental Math

5 + 5 + 5 + 8

23

100

MENTAL MATH

5-1

4

100

MENTAL MATH

5 + 245 = ? 

250
100

MENTAL MATH

2x 4 = 

8

200

Mental Math

50 + 50 + 10

110

200

MENTAL MATH

60 - 10 = 

50

200

MENTAL MATH

98 + 4 = 

102

200

MENTAL MATH

9x5

45

300

Mental Math

100 + 900 + 30 + 29 =

1059

300

MENTAL MATH

15-9 

6

300

MENTAL MATH

5 + 4 + 32 = 

41

300

MENTAL MATH

13 x 3  = 

39

400

Mental Math 

104 + 238 =

342

400

MENTAL MATH

250-150-1

99

400

MENTAL MATH

37 + 63 = 

100

400

MENTAL MATH

18 x 10 = 

180

500

Mental Math

800 + 17 + 10 =

827

500

MENTAL MATH

154-18

136

500

MENTAL MATH

10 + 15 + ___ = 241

216

500

MENTAL MATH

150 doubled 

300