100以内连续减法填空练习(共50道)
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51-1-(     )=28

75-55-(     )=14

81-16-(     )=32

91-(     )-12=5

60-(     )-18=5

(     )-54-15=3

51-3-(     )=31

62-45-(     )=6

90-(     )-0=35

93-29-(     )=2

93-(     )-10=4

(     )-7-32=45

84-(     )-59=22

54-30-(     )=21

61-20-(     )=10

92-15-(     )=6

60-6-(     )=5

(     )-7-27=18

80-(     )-8=23

80-79-(     )=1

(     )-50-0=18

80-(     )-22=10

(     )-62-26=5

77-73-(     )=0

69-49-(     )=15

65-9-(     )=20

54-53-(     )=1

54-(     )-3=13

68-2-(     )=41

(     )-56-0=3

65-(     )-1=54

69-7-(     )=48

80-1-(     )=67

(     )-14-20=62

(     )-19-16=62

52-(     )-1=21

89-(     )-4=21

(     )-18-50=17

(     )-29-23=9

99-13-(     )=6

64-35-(     )=17

69-(     )-45=15

(     )-8-59=27

67-(     )-2=28

(     )-68-11=0

90-69-(     )=0

(     )-41-29=13

(     )-36-31=10

83-34-(     )=29

67-46-(     )=21

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