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列式计算.(1)一个数加上它的25%正好等于15的23,这个数是多少?(2)65与23的和除以它们的差,得到的商再乘514积是多少?
题目详情
列式计算.
(1)一个数加上它的25%正好等于15的
,这个数是多少?
(2)
与
的和除以它们的差,得到的商再乘
积是多少?
,这个数是多少?
(2)
与
的和除以它们的差,得到的商再乘
积是多少?
2 2 3 3
与
的和除以它们的差,得到的商再乘
积是多少?
6 6 5 5
的和除以它们的差,得到的商再乘
积是多少?
2 2 3 3
积是多少?
5 5 14 14
(1)一个数加上它的25%正好等于15的
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(2)
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(2)
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| 14 |
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| 5 |
| 2 |
| 3 |
| 5 |
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▼优质解答
答案和解析
(1)15×
÷(1+25%)
=10÷125%,
=8.
答:这个数是8.
(2)(
+
)÷(
-
)×
=
÷
×
,
=
×
,
=
.
答:积是
.
2 2 23 3 3÷(1+25%)
=10÷125%,
=8.
答:这个数是8.
(2)(
+
)÷(
-
)×
=
÷
×
,
=
×
,
=
.
答:积是
.
6 6 65 5 5+
)÷(
-
)×
=
÷
×
,
=
×
,
=
.
答:积是
.
2 2 23 3 3)÷(
-
)×
=
÷
×
,
=
×
,
=
.
答:积是
.
6 6 65 5 5-
)×
=
÷
×
,
=
×
,
=
.
答:积是
.
2 2 23 3 3)×
=
÷
×
,
=
×
,
=
.
答:积是
.
5 5 514 14 14
=
÷
×
,
=
×
,
=
.
答:积是
.
28 28 2815 15 15÷
×
,
=
×
,
=
.
答:积是
. ÷
8 8 815 15 15×
,
=
×
,
=
.
答:积是
.
5 5 514 14 14,
=
×
,
=
.
答:积是
.
7 7 72 2 2×
,
=
.
答:积是
.
5 5 514 14 14,
=
.
答:积是
.
5 5 54 4 4.
答:积是
.
5 5 54 4 4.
| 2 |
| 3 |
=10÷125%,
=8.
答:这个数是8.
(2)(
| 6 |
| 5 |
| 2 |
| 3 |
| 6 |
| 5 |
| 2 |
| 3 |
| 5 |
| 14 |
=
| 28 |
| 15 |
| 8 |
| 15 |
| 5 |
| 14 |
=
| 7 |
| 2 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 2 |
| 3 |
=10÷125%,
=8.
答:这个数是8.
(2)(
| 6 |
| 5 |
| 2 |
| 3 |
| 6 |
| 5 |
| 2 |
| 3 |
| 5 |
| 14 |
=
| 28 |
| 15 |
| 8 |
| 15 |
| 5 |
| 14 |
=
| 7 |
| 2 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 6 |
| 5 |
| 2 |
| 3 |
| 6 |
| 5 |
| 2 |
| 3 |
| 5 |
| 14 |
=
| 28 |
| 15 |
| 8 |
| 15 |
| 5 |
| 14 |
=
| 7 |
| 2 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 2 |
| 3 |
| 6 |
| 5 |
| 2 |
| 3 |
| 5 |
| 14 |
=
| 28 |
| 15 |
| 8 |
| 15 |
| 5 |
| 14 |
=
| 7 |
| 2 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 6 |
| 5 |
| 2 |
| 3 |
| 5 |
| 14 |
=
| 28 |
| 15 |
| 8 |
| 15 |
| 5 |
| 14 |
=
| 7 |
| 2 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 2 |
| 3 |
| 5 |
| 14 |
=
| 28 |
| 15 |
| 8 |
| 15 |
| 5 |
| 14 |
=
| 7 |
| 2 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 5 |
| 14 |
=
| 28 |
| 15 |
| 8 |
| 15 |
| 5 |
| 14 |
=
| 7 |
| 2 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 28 |
| 15 |
| 8 |
| 15 |
| 5 |
| 14 |
=
| 7 |
| 2 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 8 |
| 15 |
| 5 |
| 14 |
=
| 7 |
| 2 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 5 |
| 14 |
=
| 7 |
| 2 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 7 |
| 2 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 5 |
| 14 |
=
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 5 |
| 4 |
答:积是
| 5 |
| 4 |
| 5 |
| 4 |
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