20以内加减法填空练习(共50道)
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19+(     )=20

16+(     )=17

17-(     )=16

(     )-3=15

(     )-5=8

3+(     )=15

(     )-12=5

15-(     )=1

5+(     )=19

11-(     )=5

(     )+3=19

(     )+12=13

(     )-14=4

12+(     )=20

3+(     )=14

7+(     )=14

(     )+3=11

(     )+13=18

17+(     )=19

(     )+12=14

(     )+2=17

16-(     )=2

(     )-8=7

(     )+14=17

(     )-0=19

17+(     )=20

11-(     )=9

(     )-17=3

6+(     )=20

15-(     )=14

(     )+17=19

(     )+0=18

(     )+4=19

0+(     )=18

(     )-8=10

(     )+12=19

13-(     )=0

(     )+2=17

11-(     )=0

14+(     )=16

19-(     )=9

(     )+17=17

11-(     )=1

(     )+14=14

(     )-6=11

(     )-14=4

17-(     )=14

15-(     )=0

4+(     )=20

(     )-4=10

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