题目内容
递等式计算
|
|
|
|
分析:(1)、(2)、(4)、根据四则混合运算的运算顺序计算即可,先做乘除后做加减.
(3)我们运用乘法的就是法则进行计算即可.
(3)我们运用乘法的就是法则进行计算即可.
解答:解:(1)
÷8÷
,
=
×
×
,
=
×
=
;
(2)
×
×
,
=
×
,
=
;
(3)
-
×
,
=
×(1-
),
=
×
,
=
;
(4)
×
÷
,
=
×
,
=
.
7 |
10 |
14 |
5 |
=
7 |
10 |
1 |
8 |
5 |
14 |
=
7 |
80 |
5 |
14 |
=
1 |
32 |
(2)
3 |
5 |
5 |
27 |
3 |
8 |
=
1 |
9 |
3 |
8 |
=
1 |
24 |
(3)
6 |
5 |
5 |
6 |
6 |
5 |
=
6 |
5 |
5 |
6 |
=
6 |
5 |
1 |
6 |
=
1 |
5 |
(4)
1 |
4 |
8 |
9 |
10 |
9 |
=
2 |
9 |
9 |
10 |
=
1 |
5 |
点评:完成本题要注意分析式中数据,运用合适的简便方法计算.
练习册系列答案
相关题目