Near Doubles!

Doubles

1

2+2=

4

2

4+4=

8

3

5+5=

10

4

7+7=

14

5

9+9=

18

Doubles +1

1

1+2=

3

2

4+5=

9

3

6+7=

13

4

8+9=

17

5

9+10=

19

Doubles

1

1+1=

2

2

3+3=

6

3

6+6=

12

4

8+8=

16

5

10+10=

20

Doubles +1

1

2+3=

5

2

3+4=

7

3

5+6=

11

4

7+8=

15

5

10+11=

21