题目内容
脱式计算:
|
(
| ||||||||||||||
(
|
|
分析:本题据四则混合运算法则完成即可:先算乘除,再算加减,有括号要先算括号里面的.
解答:解:
÷8×
=
×
×
,
=
;
÷(
÷2)
=
÷
,
=
×
,
=
;
(
-
)÷
=
×6,
=2;
(
+
)×
=
×
,
=
;
-
÷
=
-
×
,
=
-
,
=
.
| 1 |
| 2 |
| 3 |
| 5 |
=
| 1 |
| 2 |
| 1 |
| 8 |
| 3 |
| 5 |
=
| 3 |
| 80 |
| 1 |
| 3 |
| 10 |
| 33 |
=
| 1 |
| 3 |
| 5 |
| 33 |
=
| 1 |
| 3 |
| 33 |
| 5 |
=
| 11 |
| 5 |
(
| 3 |
| 4 |
| 5 |
| 12 |
| 1 |
| 6 |
=
| 1 |
| 3 |
=2;
(
| 1 |
| 2 |
| 7 |
| 10 |
| 2 |
| 3 |
=
| 6 |
| 5 |
| 2 |
| 3 |
=
| 4 |
| 5 |
| 9 |
| 10 |
| 5 |
| 8 |
| 5 |
| 7 |
=
| 9 |
| 10 |
| 5 |
| 8 |
| 7 |
| 5 |
=
| 9 |
| 10 |
| 7 |
| 8 |
=
| 1 |
| 40 |
点评:完成此类题目要细心,注意通分、约分.
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