Turn Around A
Turn Around B
Making 10 A
Making 10 B
Decades
100

3 + 4

4 + 3

100

12 + 7

7 + 12

100

4

6

100

10

0

100

29

30

200

6 + 2

2 + 6

200

5 + 14

14 + 5

200
8

2

200

2

8

200

59

60

300

3 + 1

1 + 3

300

2 + 13

13 + 2

300

1

9
300

7

3

300

99

100

400

1 + 6

6 + 1

400

13 + 4

4 + 13

400

3

7

400

5

5

400

79

80

500

3 + 5

5 + 3

500

11 + 6

6 + 11

500

6

4

500

0

10

500

109

110