20以内连续加减法填空练习(共50道)
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1+(     )+5=20

13-8-(     )=0

5+14+(     )=19

4+0+(     )=13

11-(     )-9=2

1+(     )+2=18

(     )+3+0=17

10+5+(     )=15

(     )+3+6=20

(     )+11+0=14

19-(     )-7=10

4+4+(     )=13

(     )-7-2=8

1+8+(     )=15

6+11+(     )=19

17-16-(     )=0

(     )+2+0=12

(     )+0+3=19

11+(     )+1=17

(     )+0+12=14

3+9+(     )=20

13+5+(     )=20

15-(     )-3=3

9+2+(     )=20

(     )+19+0=19

(     )+5+0=13

11+(     )+0=18

(     )-2-11=4

2+(     )+1=20

12+(     )+1=20

(     )-2-2=9

15-9-(     )=1

(     )-3-3=11

14-(     )-1=10

(     )+16+0=20

18-(     )-7=2

(     )-3-8=0

(     )-9-4=2

(     )+8+2=11

(     )+13+4=18

13-(     )-1=1

(     )-7-10=1

18+(     )+1=20

17-(     )-3=13

(     )+12+1=20

(     )-6-1=4

14-(     )-0=1

14-9-(     )=1

15+(     )+0=18

(     )-1-3=8

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