adding
adding 2
MUTIPLICATION
subtracting
subtracting 2
100

12+12

24

100

239+156

395

100

2x2

4


100

2-2

0

100

125-56

69

200

4+4

8


200

126+54

180

200

6x2

12


200

12-3

9
200

169-87

82
300

6+6

12

300

18+321

339

300

2x8

16

300

23-7

16

300

123-24

99


400

7+7

14


400

192+50

242

400

2x7

14

400

20-15

5

400

596-9

587

500

10+10

20



500

206+130

336


500

9x2

18

500

27-8

19

500

2025-1993

32

M
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