题目内容
冰雪公园里的哪只企鹅最大呢?注意下面的规则哟!
分析:先依据“除以一个数(0除外),就等于乘这个数的倒数”分别计算出每个算式的结果,再比较大小即可.
解答:解:(1)
÷
=
×
=
;
(2)6÷
=6×
=
;
(3)
÷
=1;
(4)
÷
=
×
=
;
(4)
÷
=
×
=
;
(5)
÷3
=
×
=
;
(6)
÷
=
×
=
;
(7)
÷
=
×
=
;
在这些算式的结果中,
最大,冰雪公园里的6÷
那只企鹅最大.
| 5 |
| 14 |
| 10 |
| 21 |
=
| 5 |
| 14 |
| 21 |
| 10 |
=
| 3 |
| 4 |
(2)6÷
| 5 |
| 4 |
=6×
| 4 |
| 5 |
=
| 24 |
| 5 |
(3)
| 1 |
| 3 |
| 1 |
| 3 |
(4)
| 1 |
| 3 |
| 3 |
| 4 |
=
| 1 |
| 3 |
| 4 |
| 3 |
=
| 4 |
| 9 |
(4)
| 4 |
| 15 |
| 28 |
| 45 |
=
| 4 |
| 15 |
| 45 |
| 28 |
=
| 3 |
| 7 |
(5)
| 4 |
| 7 |
=
| 4 |
| 7 |
| 1 |
| 3 |
=
| 4 |
| 21 |
(6)
| 9 |
| 14 |
| 30 |
| 7 |
=
| 9 |
| 14 |
| 7 |
| 30 |
=
| 3 |
| 20 |
(7)
| 1 |
| 4 |
| 2 |
| 3 |
=
| 1 |
| 4 |
| 3 |
| 2 |
=
| 3 |
| 8 |
在这些算式的结果中,
| 24 |
| 5 |
| 5 |
| 4 |
点评:算式比较大小,一般都先计算出每个算式的结果,再比较大小即可.
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