题目内容
口算题
1÷
|
0.8×0.5= |
|
3.22+1.68= | 2-
| ||||||||||
0÷
|
14.4-7.4= |
|
14.4-7.4= |
| ||||||||||
|
48×0.2= |
|
0.3÷1.5= | 4÷20= | ||||||||||
0.5×
|
4÷20= | 10-5.4= |
|
0.75÷15= |
考点:分数除法,小数的加法和减法
专题:运算顺序及法则
分析:我们运用整数,小数,分数的有关计算法则进行解答即可.
解答:
解:1÷
=
; 0.8×0.5=0.4;
+
=
; 3.22+1.68=4.9; 2-
=1
;
0÷
=0; 14.4-7.4=7;
-
=
; 14.4-7.4=7;
-
=
;
÷
=
; 48×0.2=9.6;
×3=1; 0.3÷1.5=0.2; 4÷20=
;
0.5×
=
; 4÷20=
; 10-5.4=4.6;
×0=0; 0.75÷15=0.05
| 5 |
| 6 |
| 6 |
| 5 |
| 3 |
| 10 |
| 1 |
| 2 |
| 4 |
| 5 |
| 1 |
| 7 |
| 6 |
| 7 |
0÷
| 6 |
| 17 |
| 3 |
| 4 |
| 3 |
| 5 |
| 3 |
| 20 |
| 3 |
| 4 |
| 3 |
| 5 |
| 3 |
| 20 |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 5 |
0.5×
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 5 |
| 3 |
| 7 |
点评:考查了学生的计算能力及口算的技巧.
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