Show:
addition
subtraction
multiplication
division
mixed up
100

72+28

100

100

23-19

4

100

4x4

16

100

4÷2

2

100

1527+578

2105

200

121+120

241

200

52-36

16

200

10x12

120

200

12÷2

6

200

1578-865

713

300

355+255

610

300

64-29

35

300

11x11

121

300

20÷10

2

300

150x4

600

400

435+365

800

400

89-52

37

400

12x12

144

400

100÷5

20

400

126÷3

42

500

1086+235

1321

500

1854-598

1256

500

20x20

400

500

152÷2      

76

500

160÷5

32