题目内容
计算下面各题.(能简算的要用简便方法计算.)
×
×
÷
÷
×
÷
×4
×(
+7)
×
+
×
.
| 5 |
| 12 |
| 7 |
| 25 |
| 3 |
| 14 |
| 7 |
| 9 |
| 1 |
| 2 |
| 35 |
| 36 |
| 3 |
| 5 |
| 8 |
| 9 |
| 5 |
| 8 |
| 5 |
| 12 |
| 1 |
| 14 |
| 7 |
| 8 |
| 5 |
| 6 |
| 1 |
| 4 |
| 5 |
| 6 |
| 3 |
| 4 |
分析:按照分数乘除法的计算方法进行计算即可.
解答:解:
×
×
=
;
÷
÷
,
=
×2×
,
=
;
×
÷
,
=
×
,
=
;
×4=
;
×(
+7),
=
×
+7×
,
=
+
,
=
;
×
+
×
,
=
×(
+
),
=
.
| 5 |
| 12 |
| 7 |
| 25 |
| 3 |
| 14 |
| 1 |
| 40 |
| 7 |
| 9 |
| 1 |
| 2 |
| 35 |
| 36 |
=
| 7 |
| 9 |
| 36 |
| 35 |
=
| 8 |
| 5 |
| 3 |
| 5 |
| 8 |
| 9 |
| 5 |
| 8 |
=
| 8 |
| 15 |
| 8 |
| 5 |
=
| 64 |
| 75 |
| 5 |
| 12 |
| 5 |
| 3 |
| 1 |
| 14 |
| 7 |
| 8 |
=
| 1 |
| 14 |
| 7 |
| 8 |
| 1 |
| 14 |
=
| 1 |
| 16 |
| 1 |
| 2 |
=
| 9 |
| 16 |
| 5 |
| 6 |
| 1 |
| 4 |
| 5 |
| 6 |
| 3 |
| 4 |
=
| 5 |
| 6 |
| 1 |
| 4 |
| 3 |
| 4 |
=
| 5 |
| 6 |
点评:此题考查在混合运算中有括号时,要先算括号里面的,再算括号外面的;只有乘除法时,一般从左往右按顺序计算;
能简算的要用简便方法计算.
能简算的要用简便方法计算.
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