1,2,3
Skip counting
0,5,10
100

1x9

9

100

8, ___, 24

16

100

0x139237

0
200

2x7

14

200

3_9

6

200

5x3

15

300

3x6

18

300

2,____,6

4

300

10x7

70

400

3x9

27

400

9___27

18

400

10x10

100

500

3x12

36

500

12___36

24

500

5x11

55