20以内减法填空练习(共50道)
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18-(     )=16

16-(     )=6

20-(     )=3

12-(     )=6

16-(     )=16

16-(     )=3

13-(     )=4

16-(     )=4

20-(     )=15

12-(     )=9

19-(     )=8

14-(     )=11

18-(     )=1

15-(     )=1

12-(     )=4

14-(     )=8

15-(     )=4

18-(     )=4

17-(     )=13

16-(     )=12

13-(     )=6

19-(     )=18

13-(     )=11

20-(     )=15

18-(     )=5

14-(     )=8

11-(     )=0

17-(     )=3

17-(     )=2

14-(     )=11

11-(     )=5

18-(     )=16

12-(     )=4

11-(     )=8

15-(     )=7

17-(     )=12

15-(     )=9

17-(     )=1

12-(     )=5

14-(     )=10

15-(     )=0

15-(     )=0

16-(     )=10

16-(     )=7

18-(     )=5

16-(     )=5

12-(     )=6

20-(     )=4

17-(     )=13

19-(     )=5

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