题目内容
| 计算下面各题,能简算的要简算. 26×
|
|
|
| ||||||||||||||||||
| 1
| 1÷
|
|
考点:整数、分数、小数、百分数四则混合运算,运算定律与简便运算
专题:运算顺序及法则,运算定律及简算
分析:依据除以一个数等于乘这个数的倒数,把题干中的除法化为乘法,再运用分数乘法计算方法即可解答.
解答:
解:(1)26×
÷2
=
×
=2;
(2)
÷
÷
=
×
×3
=
×3
=2
;
(3)
×8÷
=
×
=2;
(4)
÷
÷
=
×
×
=
×
=
;
(5)1
×360÷7
=420÷7
=60;
(6)1÷
÷
=1×100×1000
=100×1000
=100000.
| 1 |
| 5 |
| 3 |
| 5 |
=
| 26 |
| 5 |
| 5 |
| 13 |
=2;
(2)
| 5 |
| 6 |
| 8 |
| 9 |
| 1 |
| 3 |
=
| 5 |
| 6 |
| 9 |
| 8 |
=
| 45 |
| 48 |
=2
| 13 |
| 16 |
(3)
| 1 |
| 5 |
| 4 |
| 5 |
=
| 8 |
| 5 |
| 5 |
| 4 |
=2;
(4)
| 3 |
| 4 |
| 7 |
| 8 |
| 15 |
| 14 |
=
| 3 |
| 4 |
| 8 |
| 7 |
| 14 |
| 15 |
=
| 6 |
| 7 |
| 14 |
| 15 |
=
| 4 |
| 5 |
(5)1
| 1 |
| 6 |
=420÷7
=60;
(6)1÷
| 1 |
| 100 |
| 1 |
| 1000 |
=1×100×1000
=100×1000
=100000.
点评:运用分数乘法计算方法正确进行计算是本题考查知识点.
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