+*-/
300+100
20*20
500-100
400/1
100

+ what do this min 

to add

100

14+25

39

100

1*2

2

100

40-10

30

100

1/0

0

200

* what do this min 

multiplication

200

4+4

8

200

9*4

36

200

20-4

16

200

9/2

4.5

300

- what do this min

 subtraction

300

24+27

51

300

9*9

81

300

26-14

12

300

20/8

2.5

400

/ what do this min 

division

400

88+44

132

400

12*3

36

400

66-48

18

400

9/8

1.125

500

=what do this min

equal

500

149+137

286

500

12*14

168

500

164-97

67

500

150/400

.375

M
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n
u