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Addition and Subtraction

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Adding and subtracting up to 20

Study Slideshow

#Subtraction #1st grade #adding #subtracting #Addition #1 to 20 #numbers from 1 to 20

9 + 2 =

11

15

7 - 3 =

4

15

9 + 9 =

18

15

1 + 8 =

9

15

7 + 7 =

14

15

6 + 6 =

12

15

5 + 5 =

10

15

3 + 3 =

6

15

10 - 7 =

3

15

5 - 3 =

2

15

6 - 2 =

4

15

9 + 4 =

13

15

8 + 7 =

15

15

15 - 3 =

12

15

2 + 2 =

4

15

10 + 7 =

17

15

1
2
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