20以内减法练习题（破十法）

例：15 — 8 = 7 5 10 2

18 — 9 =

15 — 9 =

12 — 9 =

16 — 8 = 15

13 — 8 = 12

16 — 7 =

17 — 9 = 14 — 9 = 11 — 9 = 17 — 8 = 14 — 8 = 11 15 — 7 = 14 — 9 = 13 — 9 = — 8 = — 8 = — 8 = — 7 = 16

13 — 7 = 12 — 7 = 11 — 7 =

15 — 6 = 14 — 6 = 13 — 6 =

12 — 6 = 11

13 — 5 = 12

13 — 4 = 12

12 — 3 = 11

13 — 5 = 12

— 6 = 14 — 5 = 11 — 4 = 11 — 3 = 11 — 5 = 11 — 5 = — 5 = — 4 = — 2 = — 5 =

13 — 4 = 12 — 4 = 11 — 4 =

16 — 7 = 15 — 7 = 14 — 7 =

18 — 9 = 17

15 — 9 = 14

13 — 7 = 12

12 — 9 = 11

16 — 8 = 15

— 9 = 16 — 9 = 13 — 7 = 11 — 9 = 17 — 8 = 14 — 9 = — 9 = — 7 = — 8 = — 8 =

13 — 4 = 12 — 4 = 11 — 4 =

12 — 3 = 11 — 3 = 11 — 2 =

13 — 5 = 12

13 — 8 = 12

16 — 7 = 15

12 — 6 = 11

15 — 9 = 14

— 5 = 11 — 8 = 11 — 7 = 14 — 6 = 14 — 9 = 13 — 5 = — 8 = — 7 = — 5 = — 9 =