A-A+

口算:19+59=711-711=12+3=2.6-135=5-811=15-16=1114

2022-08-14 00:46:11 问答库 阅读 200 次

问题详情

口算:
1

9

+5

9

=7

11

-7

11

=1

2

+3=2.6-13

5

=

5-8

11

=1

5

-1

6

=11

14

+9

14

=5

12

-1

12

=

2-1

3

-2

3

=2

3

+1

7

-2

3

=12

7

-(2

7

+1

8

)=3

4

+3

8

+3

4

+5

8

=

参考答案

19+59=23711-711=012+3=3122.6-135=15-811=431115-16=1301114+914=107512-112=132-13-23=123+17-23=17127-(27+18)=7834+38+34+58=212

考点:口算