题目内容
计算下列各题.
×3÷
×
×
÷6÷
.
| 16 |
| 5 |
| 4 |
| 5 |
| 25 |
| 26 |
| 4 |
| 9 |
| 13 |
| 10 |
| 3 |
| 5 |
| 1 |
| 15 |
考点:分数的四则混合运算
专题:运算顺序及法则
分析:(1)(3)按照从左到右顺序计算解答,
(2)运用乘法结合律解答.
(2)运用乘法结合律解答.
解答:
解:(1)
×3÷
=
÷
=12;
(2)
×
×
=
×
×
=
×
=
;
(3)
÷6÷
=
÷
=1
.
| 16 |
| 5 |
| 4 |
| 5 |
=
| 48 |
| 5 |
| 4 |
| 5 |
=12;
(2)
| 25 |
| 26 |
| 4 |
| 9 |
| 13 |
| 10 |
=
| 25 |
| 26 |
| 13 |
| 10 |
| 4 |
| 9 |
=
| 5 |
| 4 |
| 4 |
| 9 |
=
| 5 |
| 9 |
(3)
| 3 |
| 5 |
| 1 |
| 15 |
=
| 1 |
| 10 |
| 1 |
| 15 |
=1
| 1 |
| 2 |
点评:(1)依据四则运算计算方法正确进行计算,(2)正确运用简便方法解决问题,是本题考查知识点.
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