20以内减法借十法破十法强化训练

20以减法借十法练习题

口诀： 进位加法（凑十法口诀：看大数，分小数，凑成十，算得数）

退位减法（破十法口诀：看大数，分出10，减小数，加剩数）

如嫌题目太少可更改数字

例：15 — 8 = 7 5 10 2

（一）

18 — 9 = 17 — 9 = 16 — 9 =

15 — 9 = 14 — 9 = 13 — 9 =

12 — 9 = 11 — 9 = 17 — 8 = 页脚

. .

（二）

16 — 8 = 15 — 8 = 14 — 8 =

13 — 8 =

16 — 7 =

13 — 7 =

15 — 6 =

12 — 6 = 页脚 12 — 8 = 15 — 7 = 12 — 7 = 14 — 6 = 11 — 6 =

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

（三）

13 — 5 = 12 — 5 = 11 — 5 =

13 — 4 =

12 — 3 =

13 — 5 =

13 — 4 =

16 — 7 =

页脚 12 — 4 = 11 — 3 = 12 — 5 = 12 — 4 = 15 — 7 =

11 — 4 = 11 — 2 = 11 — 5 = 11 — 4 = 14 — 7 = . .

（四）

18 — 9 = 17 — 9 = 16 — 9 =

15 — 9 =

13 — 7 =

12 — 9 =

16 — 8 =

13 — 4 =

页脚 14 — 9 = 12 — 7 = 11 — 9 = 15 — 8 = 12 — 4 =

13 — 9 = 11 — 7 = 17 — 8 = 14 — 8 = 11 — 4 = . .

（五）

12 — 3 = 11 — 3 = 11 — 2 =

13 — 5 =

13 — 8 =

16 — 7 =

12 — 6 =

15 — 9 =

页脚 12 — 5 = 12 — 8 = 15 — 7 = 11 — 6 = 14 — 9 =

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

（六）

13 — 4 = 12 — 4 = 11 — 4 =

12 — 3 =

13 — 5 =

13 — 8 =

16 — 7 =

12 — 6 =

页脚 11 — 3 = 12 — 5 = 12 — 8 = 15 — 7 = 11 — 6 =

11 — 2 = 11 — 5 = 11 — 8 = 14 — 7 = 14 — 5 = . .

（七）

15 — 9 = 14 — 9 = 13 — 9 =

13 — 4 =

16 — 7 =

18 — 9 =

15 — 9 =

13 — 7 =

页脚 12 — 4 = 15 — 7 = 17 — 9 = 14 — 9 = 12 — 7 =

11 — 4 = 14 — 7 = 16 — 9 = 13 — 9 = 11 — 7 = . .

（八）

12 — 9 = 11 — 9 = 17 — 8 =

16 — 8 =

13 — 4 =

16 — 7 =

18 — 9 =

15 — 9 =

页脚 15 — 8 = 12 — 4 = 15 — 7 = 17 — 9 = 14 — 9 =

14 — 8 = 11 — 4 = 14 — 7 = 16 — 9 = 13 — 9 = . .

（九）

13 — 7 = 12 — 7 = 11 — 7 =

12 — 9 =

16 — 8 =

13 — 4 =

12 — 3 =

13 — 5 =

页脚 11 — 9 = 15 — 8 = 12 — 4 = 11 — 3 = 12 — 5 =

17 — 8 = 14 — 8 = 11 — 4 = 11 — 2 = 11 — 5 = . .

（十）

13 — 8 = 12 — 8 = 11 — 8 =

16 — 7 =

12 — 6 =

15 — 9 =

13 — 4 =

12 — 3 =

页脚 15 — 7 = 11 — 6 = 14 — 9 = 12 — 4 = 11 — 3 =

14 — 7 = 14 — 5 = 13 — 9 = 11 — 4 = 11 — 2 = . .

（十一）

13 — 5 = 12 — 5 = 11 — 5 =

13 — 8 =

16 — 7 =

12 — 6 =

15 — 9 =

13 — 4 =

页脚 12 — 8 = 15 — 7 = 11 — 6 = 14 — 9 = 12 — 4 =

11 — 8 = 14 — 7 = 14 — 5 = 13 — 9 = 11 — 4 = . .

（十二）

16 — 7 = 15 — 7 = 14 — 7 =

18 — 9 =

15 — 9 =

13 — 7 =

12 — 9 =

16 — 8 =

页脚 17 — 9 = 14 — 9 = 12 — 7 = 11 — 9 = 15 — 8 =

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

（十三）

13 — 4 = 12 — 4 = 11 — 4 =

16 — 7 =

18 — 9 =

15 — 9 =

13 — 7 =

12 — 9 =

页脚 15 — 7 = 17 — 9 = 14 — 9 = 12 — 7 = 11 — 9 =

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

（十四）

16 — 8 = 15 — 8 = 14 — 8 =

13 — 4 =

12 — 3 =

13 — 5 =

13 — 8 =

16 — 7 =

页脚 12 — 4 = 11 — 3 = 12 — 5 = 12 — 8 = 15 — 7 =

11 — 4 = 11 — 2 = 11 — 5 = 11 — 8 = 14 — 7 = . .

（十五）

12 — 6 = 11 — 6 = 14 — 5 =

15 — 9 =

13 — 4 =

12 — 3 =

13 — 5 =

13 — 8 =

页脚 14 — 9 = 12 — 4 = 11 — 3 = 12 — 5 = 12 — 8 =

13 — 9 = 11 — 4 = 11 — 2 = 11 — 5 = 11 — 8 = . .

（十六）

16 — 7 = 15 — 7 = 14 — 7 =

12 — 6 =

15 — 9 =

13 — 4 =

16 — 7 =

18 — 9 =

页脚 11 — 6 = 14 — 9 = 12 — 4 = 15 — 7 = 17 — 9 =

14 — 5 = 13 — 9 = 11 — 4 = 14 — 7 = 16 — 9 = . .

（十七）

15 — 9 = 14 — 9 = 13 — 9 =

13 — 7 =

12 — 9 =

16 — 8 =

页脚 12 — 7 11 — 9 15 — 8

= 11 — 7 = = 17 — 8 = = 14 — 8 =