Show:
Addition
Subtraction
3# Addition
Counting
100

10 + 5

15


100

16 - 8 

8

100

2 + 2 + 2 

6

100

Start at 10 go to 20

10 11 12 13 14 15 16 17 18 19 20

200

11 + 9

20

200
20 - 7

13

200

3 + 3 + 3 

9

200

30 to 40

31 32 33 34 35 36 37 38 39 40

300

7 + 13

20

300

15 - 5

10

300

4 + 4 + 4

12

300

45 to 55 

45 46 47 48 49 50 51 52 53 54 55

400

9 + 9

18

400

19 - 9

10

400

5 + 5 + 5

15

400

65 to 72

65 66 67 68 69 70 71 72 

500

30 + 5

35

500

40-10

30

500

10 + 10 + 10 

30

500

50 to 70

51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70