题目内容
计算下面各题
|
| ||||||||||
|
4×
|
分析:这四道题都按照从左到右的顺序进行计算即可.
解答:解:(1)
×
×
,
=
×
,
=
;
(2)
÷6÷
,
=
×
,
=
;
(3)
÷2×
,
=
×
,
=
;
(4)4×
÷
,
=
×
,
=
.
| 3 |
| 4 |
| 5 |
| 9 |
| 3 |
| 10 |
=
| 5 |
| 12 |
| 3 |
| 10 |
=
| 1 |
| 8 |
(2)
| 7 |
| 12 |
| 2 |
| 3 |
=
| 7 |
| 72 |
| 3 |
| 2 |
=
| 7 |
| 48 |
(3)
| 4 |
| 5 |
| 7 |
| 10 |
=
| 2 |
| 5 |
| 7 |
| 10 |
=
| 7 |
| 25 |
(4)4×
| 5 |
| 12 |
| 3 |
| 5 |
=
| 5 |
| 3 |
| 5 |
| 3 |
=
| 25 |
| 9 |
点评:一个算式里如果是同一级运算,一般按从左往右依次进行计算.
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