20以内减法填空练习(共50道)
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19-(     )=3

18-(     )=9

13-(     )=6

20-(     )=19

12-(     )=7

19-(     )=19

12-(     )=8

13-(     )=2

13-(     )=0

17-(     )=16

14-(     )=8

13-(     )=7

20-(     )=13

15-(     )=15

12-(     )=5

18-(     )=1

16-(     )=12

14-(     )=1

11-(     )=9

16-(     )=3

13-(     )=11

11-(     )=7

12-(     )=9

16-(     )=2

17-(     )=2

16-(     )=14

20-(     )=18

12-(     )=0

13-(     )=5

12-(     )=4

14-(     )=1

12-(     )=3

13-(     )=8

13-(     )=11

19-(     )=14

19-(     )=0

15-(     )=6

14-(     )=12

16-(     )=2

17-(     )=16

15-(     )=2

15-(     )=13

12-(     )=0

16-(     )=4

17-(     )=14

19-(     )=17

12-(     )=11

17-(     )=11

14-(     )=7

12-(     )=11

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