50以内连续减法填空练习(共50道)
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30-(     )-3=2

30-(     )-1=13

(     )-16-12=19

42-14-(     )=1

(     )-24-6=3

44-(     )-2=24

23-8-(     )=6

31-(     )-26=5

(     )-21-7=18

25-(     )-6=2

24-(     )-1=1

48-15-(     )=11

21-1-(     )=13

(     )-9-29=11

33-(     )-13=16

46-(     )-2=43

(     )-28-2=0

39-8-(     )=31

(     )-29-5=0

(     )-27-0=1

(     )-39-4=1

(     )-35-2=1

33-1-(     )=8

43-12-(     )=31

22-12-(     )=0

(     )-9-30=6

36-16-(     )=2

21-17-(     )=1

(     )-33-2=7

39-(     )-0=2

(     )-8-9=17

29-(     )-8=3

(     )-24-0=4

(     )-19-21=3

46-(     )-20=18

(     )-1-17=11

40-3-(     )=5

(     )-7-14=2

22-(     )-5=14

25-6-(     )=3

42-19-(     )=23

42-20-(     )=15

35-2-(     )=18

22-3-(     )=5

(     )-15-12=14

(     )-10-17=9

(     )-6-1=31

(     )-25-10=6

(     )-15-3=16

46-(     )-5=30

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