Show:
Addition
Subtraction
Multiplication
Addition 2
Subtraction 2
100

2+6

8

100

6-3

3

100

4x2

8

100

7+2

9

100

9-4

5

200

10+21

31

200

19-6

13

200

2x12

24

200

13+15

28

200

27-13

14

300

109+31 

140

300

156-41

115

300

21x6

126

300

126+61

187

300

123-45

78

400

256+512

768

400

457-201

256

400

105x12

1260

400

257+208

465

400

478-234

244

500

1253+540

1793

500

2015-1198

817

500

512x6

3072

500

1756+1202

2958

500

2911-1207

1704