题目内容
直接写出得数.
|
7÷
|
|
0.64+3.6= | ||||||||||||||||||||||
1÷
|
|
|
| ||||||||||||||||||||||
101×
|
6.5-0.72-28%= |
分析:①分子相乘的积做分子,分母相乘的积做分母;②除以一个数等于乘这个数的倒数;③⑧通分计算;④小数点对齐;⑤把除法改为乘法,再计算;⑥⑨运用乘法分配律简算;⑦把除法改为乘法,约分计算;⑩运用减法的性质简算.
解答:解:
×
=
; 7÷
=28;
-
=
; 0.64+3.6=4.24;
1÷
×9=81;
×
+
×
=
;
×
÷
×
=
;
+
=
;
101×
-
=80; 6.5-0.72-28%=5.5.
故答案为:
,28,
,4.24,81,
,
,
,80,5.5.
| 1 |
| 4 |
| 1 |
| 5 |
| 1 |
| 20 |
| 1 |
| 4 |
| 2 |
| 3 |
| 1 |
| 5 |
| 7 |
| 15 |
1÷
| 1 |
| 9 |
| 1 |
| 8 |
| 5 |
| 6 |
| 1 |
| 8 |
| 1 |
| 6 |
| 1 |
| 8 |
| 2 |
| 5 |
| 2 |
| 3 |
| 2 |
| 5 |
| 2 |
| 3 |
| 4 |
| 9 |
| 3 |
| 4 |
| 5 |
| 6 |
| 19 |
| 12 |
101×
| 4 |
| 5 |
| 4 |
| 5 |
故答案为:
| 1 |
| 20 |
| 7 |
| 15 |
| 1 |
| 8 |
| 4 |
| 9 |
| 19 |
| 12 |
点评:完成此题要注意运算顺序,以及运用运算定律或性质简算.
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