20以内减法(破十法)练习题.doc

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20以内减法练习题(破十法)

7例:15 — 8 =

7

510

5

10

2

2

18 — 9 = 17 — 9 = 16 — 9 =

15 — 9 = 14 — 9 = 13 — 9 =

12 — 9 = 11 — 9 = 17 — 8 =

16 — 8 = 15 — 8 = 14 — 8 =

13 — 8 = 12 — 8 = 11 — 8 =

16 — 7 = 15 — 7 = 14 — 7 =

13 — 7 = 12 — 7 = 11 — 7 =

15 — 6 = 14 — 6 = 13 — 6 =

12 — 6 = 11 — 6 = 14 — 5 =

13 — 5 = 12 — 5 = 11 — 5 =

13 — 4 = 12 — 4 = 11 — 4 =

12 — 3 = 11 — 3 = 11 — 2 =

13 — 5 = 12 — 5 = 11 — 5 =

13 — 4 = 12 — 4 = 11 — 4 =

16 — 7 = 15 — 7 = 14 — 7 =

18 — 9 = 17 — 9 = 16 — 9 =

15 — 9 = 14 — 9 = 13 — 9 =

13 — 7 = 12 — 7 = 11 — 7 =

12 — 9 = 11 — 9 = 17 — 8 =

16 — 8 = 15 — 8 = 14 — 8 =

13 — 4 = 12 — 4 = 11 — 4 =

12 — 3 = 11 — 3 = 11 — 2 =

13 — 5 = 12 — 5 = 11 — 5 =

13 — 8 = 12 — 8 = 11 — 8 =

16 — 7 = 15 — 7 = 14 — 7 =

12 — 6 = 11 — 6 = 14 — 5 =

15 — 9 = 14 — 9 = 13 — 9 =

13 — 4 = 12 — 4 = 11 — 4 =

12

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