题目内容
文字里的数学
(1)
除以
的商去除2乘
的积,商是多少?
(2)一个数的60%比它的
少10,求这个数.
(1)
| 2 |
| 3 |
| 4 |
| 9 |
| 4 |
| 5 |
(2)一个数的60%比它的
| 4 |
| 5 |
(1)(2×
)÷(
÷
),
=
÷(
×
),
=
÷
,
=
×
,
=
;
答:商是
,
(2)10÷(
-60%),
=10÷(0.8-0.6),
=10÷0.2,
=50;
答:这个数是50.
| 4 |
| 5 |
| 2 |
| 3 |
| 4 |
| 9 |
=
| 8 |
| 5 |
| 2 |
| 3 |
| 9 |
| 4 |
=
| 8 |
| 5 |
| 3 |
| 2 |
=
| 8 |
| 5 |
| 2 |
| 3 |
=
| 16 |
| 15 |
答:商是
| 16 |
| 15 |
(2)10÷(
| 4 |
| 5 |
=10÷(0.8-0.6),
=10÷0.2,
=50;
答:这个数是50.
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