adding
subtracting
muiptupchtiom
100

5+5

10

100

10-9

1

100

10times9

90

200

10+7

17

200

7-6

1

300

7+0

7

300

8-8

0


400

90+7

97

400

4-1

3



500

40+4

44

500

3-1

2

M
e
n
u