题目内容
| 直接写出得数. 1-
|
|
|
4.8÷12%= | ||||||||||||
| 0.32= |
|
2.46+3.54= | 8-2.6= | ||||||||||||
| 0.5÷0.01= | 1÷
|
|
70÷0.25÷4= |
分析:①把化成分母为5的分数,再计算;②通分计算;③约分计算;④把2%化为小数计算;⑤即0.3×0.3;⑥把1÷6写成分数形式,再计算;⑦⑧注意小数点对齐;⑨运用加法交换律与结合律简算;⑩运用除法的性质简算.
解答:解:1-
+
=
;
-
=
;
×
=
; 4.8÷12%=40;
0.32=0.09;
-1÷6=
; 2.46+3.54=6; 8-2.6=5.4;
0.5÷0.01=50; 1÷
=10;
+
+
=1
; 70÷0.25÷4=70;
故答案为:
,
,
,40,0.09,
,6,5.4,50,10,1
,70.
| 1 |
| 5 |
| 4 |
| 5 |
| 8 |
| 5 |
| 7 |
| 8 |
| 1 |
| 4 |
| 5 |
| 8 |
| 2 |
| 3 |
| 6 |
| 7 |
| 4 |
| 7 |
0.32=0.09;
| 5 |
| 6 |
| 2 |
| 3 |
0.5÷0.01=50; 1÷
| 1 |
| 10 |
| 1 |
| 3 |
| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 2 |
故答案为:
| 8 |
| 5 |
| 5 |
| 8 |
| 4 |
| 7 |
| 2 |
| 3 |
| 1 |
| 2 |
点评:此题考查了多方面的知识:通分、约分、数字转化、小数点对齐,以及运算定律与性质.
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