20以内减法填空练习(共50道)
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(     )-1=18

(     )-7=4

(     )-4=9

(     )-12=1

(     )-6=8

(     )-8=9

(     )-9=2

(     )-8=3

(     )-10=10

(     )-14=4

(     )-2=17

(     )-1=11

(     )-12=3

(     )-7=9

(     )-2=13

(     )-11=8

(     )-13=0

(     )-7=11

(     )-5=7

(     )-4=9

(     )-12=2

(     )-11=3

(     )-11=1

(     )-8=8

(     )-16=3

(     )-1=11

(     )-18=1

(     )-2=12

(     )-7=7

(     )-10=2

(     )-2=9

(     )-10=6

(     )-8=7

(     )-13=4

(     )-4=8

(     )-10=5

(     )-9=4

(     )-14=5

(     )-0=14

(     )-0=13

(     )-17=2

(     )-11=6

(     )-9=4

(     )-6=7

(     )-14=1

(     )-2=17

(     )-15=4

(     )-12=4

(     )-4=8

(     )-1=16

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