Doubles
Doubles Plus One
Before
After
Counting
3333

Solve the math problem:

4+4= ___

8

3333

Solve the math problem:

2+3=

5
3333

Number before 8

7

3333

Number after 3

4

3333

X X X X

X X X 

7

66666

Solve the math problem:

2+2=

4

66666

Solve the math problem:

1+2=

3

66666

Number before 10

9

66666

Number after 11

12

66666

X X X X X

X X X X X

10

99999

Solve the math problem:

3+3=

6

99999

Solve the math problem:

4+5=

9
99999

Number before 15

14

99999

Number after 17

18

99999

X X X X X

X X X X X

X X X

13

121212

Solve the math problem:

0+0=

0

121212

Solve the math problem:

3+4=

7
121212
Number before 20

19

121212

Number after 19

20

121212

X X X X X

X X X X X

X X X X X

X X X 

18

15151515

Solve the math problem:

5+5= ___

10
15151515

Solve the math problem:

5+6=

11

15151515

Number before 5

4

15151515

Number after 6

7

15151515

X X X X X

5

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