题目内容
(1)
×
÷
(2)4÷
-
(3)
×
+
×
.
| 9 |
| 14 |
| 7 |
| 9 |
| 3 |
| 4 |
(2)4÷
| 8 |
| 3 |
| 4 |
| 5 |
(3)
| 7 |
| 8 |
| 11 |
| 24 |
| 9 |
| 8 |
| 11 |
| 24 |
考点:分数的四则混合运算
专题:运算顺序及法则
分析:(1)按照从左到右顺序计算解答,
(2)按照先算第二级运算,总数的用级运算顺序计算解答,
(3)运用乘法分配律解答.
(2)按照先算第二级运算,总数的用级运算顺序计算解答,
(3)运用乘法分配律解答.
解答:
解:(1)
×
÷
=
÷
=
;
(2)4÷
-
=
-
=
;
(3)
×
+
×
=(
+
)×
=2×
=
.
| 9 |
| 14 |
| 7 |
| 9 |
| 3 |
| 4 |
=
| 1 |
| 2 |
| 3 |
| 4 |
=
| 2 |
| 3 |
(2)4÷
| 8 |
| 3 |
| 4 |
| 5 |
=
| 3 |
| 2 |
| 4 |
| 5 |
=
| 7 |
| 10 |
(3)
| 7 |
| 8 |
| 11 |
| 24 |
| 9 |
| 8 |
| 11 |
| 24 |
=(
| 7 |
| 8 |
| 9 |
| 8 |
| 11 |
| 24 |
=2×
| 11 |
| 24 |
=
| 11 |
| 12 |
点评:本题主要考查学生依据四则运算计算方法正确进行计算,以及正确运用简便方法解决问题的能力.
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