20以内加法填空练习(共50道)
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(     )+19=19

(     )+18=20

10+(     )=14

(     )+8=20

(     )+11=17

(     )+13=19

(     )+5=12

(     )+8=17

(     )+11=13

(     )+8=12

14+(     )=17

1+(     )=18

15+(     )=18

(     )+0=12

(     )+5=20

(     )+3=14

(     )+1=16

(     )+1=17

3+(     )=12

(     )+4=13

(     )+1=20

(     )+8=18

(     )+6=19

(     )+12=15

4+(     )=12

1+(     )=20

(     )+1=16

(     )+5=14

8+(     )=19

3+(     )=19

(     )+0=19

9+(     )=20

(     )+6=13

15+(     )=18

(     )+0=18

(     )+1=19

13+(     )=16

(     )+16=20

(     )+6=12

(     )+8=19

18+(     )=20

(     )+5=18

(     )+11=15

(     )+2=18

11+(     )=14

(     )+7=20

4+(     )=17

15+(     )=15

4+(     )=19

(     )+0=19

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