题目内容
直接写出得数
0.54+1
|
6.45-(
|
| ||||||||||||
8×0.25÷
|
8-0.75÷
|
125×
| ||||||||||||
1÷
|
|
(
|
分析:①把分数化为小数计算;②把分数化为小数,先算括号内的,再算括号外的;③⑥约分计算;④把除法改为乘法,从左往右依次运算;⑤先算除法,再算减法;⑦先算除法和乘法,再算减法;⑧把除法改为乘法,再计算;⑨因为
=0.25,因此结果为0.
1 |
20 |
解答:解:0.54+1
=2.34; 6.45-(
-0.45)=6.275;
×
=
;
8×0.25÷
=8; 8-0.75÷
=7; 125×
=30;
1÷
-1×
=1
;
÷
=
; (
-0.05)÷
=0.
故答案为:2.34,6.275,
,8,7,30,1
,
,0.
4 |
5 |
5 |
8 |
6 |
5 |
7 |
12 |
7 |
10 |
8×0.25÷
1 |
4 |
3 |
4 |
6 |
25 |
1÷
1 |
2 |
1 |
2 |
1 |
2 |
11 |
8 |
1 |
10 |
55 |
4 |
1 |
20 |
1 |
4 |
故答案为:2.34,6.275,
7 |
10 |
1 |
2 |
55 |
4 |
点评:此题考查了小数与分数的转化、乘法与除法的转化,以及对四则运算顺序的掌握情况.
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