Counting by 2's
Counting by 5's
Counting by 10's
Adding +
Subtracting -
100

0, 2, __, 6, 8, 10

4

0, 2, 4, 6, 8, 10

100

0, 5, __, 15, 20

10

0, 5, 10, 15, 20

100

0, 10, __, 30, 40, 50

20

0, 10, 20, 30, 40, 50

100

2+2=?

4

100

2-0=?

2

200

6, 8, __, 12, 14

10

6, 8, 10, 12, 14

200

5, 10, 15, __, 25

20

5, 10, 15, 20, 25

200

10, 20, 30, __, 50, 60

40

10, 20, 30, 40, 50, 60

200

4+0=?

4

200

3-1=?

2

300

14, 16, 18, __, 22, 24

20

14, 16, 18, 20, 22, 24

300

15, 20, 25, __, 35

30

15, 20, 25, 30, 35

300

10, 20, 30, 40, 50, 60, __, 80

70

10, 20, 30, 40, 50, 60, 70, 80

300

6+2=?

8

300

4-4=?

0

400

28, 30, 32, __, 36, 38

34

28, 30, 32, 34, 36, 38

400

20, 25, 30, 35, __, 45

40 

20, 25, 30, 35, 40, 45

400

50, 60, 70, 80, 90, __, 110

100

50, 60, 70, 80, 90, 100, 110

400

3+4=?

7

400

5-4=?

1

500

40, 42, 44, __, 48, 50

46

40, 42, 44, 46, 48, 50

500

40, 45, 50, 55, __, 65, 70

60

40, 45, 50, 55, 60, 65, 70

500

70, 80, 90, 100, 110, __, 130

120

70, 80, 90, 100, 110, 120, 130

500

6+5=?

11

500

6-3=?

3

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