题目内容
在横线里填上“>”、“<”或“=”.
< <
|
< <
|
分析:先计算出算式结果,再比较大小.
解答:解:(1)因为
×
=
,
÷
=
×5=
,
又因
<
,
所以
×
<
÷
;
(2)因为
×
×
=
=
,
÷
÷
=
×4×
=
=
,
又因
<
,
所以
×
×
<
÷
÷
;
故答案为:<、<.
| 15 |
| 16 |
| 1 |
| 5 |
| 3 |
| 16 |
| 15 |
| 16 |
| 1 |
| 5 |
| 15 |
| 16 |
| 75 |
| 16 |
又因
| 3 |
| 16 |
| 75 |
| 16 |
所以
| 15 |
| 16 |
| 1 |
| 5 |
| 15 |
| 16 |
| 1 |
| 5 |
(2)因为
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 5 |
| 1 |
| 10 |
| 9 |
| 90 |
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 5 |
| 2 |
| 3 |
| 5 |
| 3 |
| 40 |
| 9 |
| 400 |
| 90 |
又因
| 9 |
| 90 |
| 400 |
| 90 |
所以
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 5 |
| 2 |
| 3 |
| 1 |
| 4 |
| 3 |
| 5 |
故答案为:<、<.
点评:算式比较大小,一般先算出结果,再比较大小.
练习册系列答案
相关题目