multiplication
Adding
100

50x3=?

150

100

5+5=?

55

200

9x9=?

81

200

2+2+?

22

300

55x2=?

110

300

9+9=?

99

400

20x4=?

60

400

8+8=

88

500

90x5=?

450

500

7+7=?

14