Doubles
Doubles
Double +1
Double +1
Fact of 10
100

0+0

0

100

1+1

2

100

2+1

3

100

0+1

1

100

3+_

7

200

2+2

4

200

5+5

10
200

3+4

7

200

1+2

3

200

9+_

1

300

3+3

6

300

6+6

12

300

4+5

9

300

8+9

17

300

8+_

2

400

4+4

8

400

7+7

14

400

2+3

5

400

6+7

13

400

6+_

4

500

8+8

16

500

9+9

18

500

5+6

11

500

7+8

15

500

4+_

6

M
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u