math

Adding

100

274+129

409

200

198+487

1685

300

589+476

1,065

400

698+700

1398

500

1234567

23456789

multiplying

100

10%9

90

200

7%8

56

300

8%8

64

400

7%15

105

500

2345678

345678

subtraction

100

43-19

24

200

79-49

30

300

98-77

31

400

596-298

298

500

123456789

87654321