题目内容
列式计算.
(1)
与它的倒数的和,除以
与
的积,商是多少?
(2)7.2比一个数的25%多6.7,求这个数.
(3)0.8与6.2的和乘以
与
的差,积是多少?
(1)
| 3 |
| 4 |
| 5 |
| 9 |
| 9 |
| 10 |
(2)7.2比一个数的25%多6.7,求这个数.
(3)0.8与6.2的和乘以
| 4 |
| 5 |
| 3 |
| 7 |
(1)(
+
)÷(
×
),
=
÷
.,
=
×2,
=4
;
(2)(7.2-6.7)÷25%,
=0.5÷0.25,
=2;
(3)(0.8+6.2)×(
-
),
=7×
,
=2
.
| 3 |
| 4 |
| 4 |
| 3 |
| 5 |
| 9 |
| 9 |
| 10 |
=
| 25 |
| 12 |
| 1 |
| 2 |
=
| 25 |
| 12 |
=4
| 1 |
| 6 |
(2)(7.2-6.7)÷25%,
=0.5÷0.25,
=2;
(3)(0.8+6.2)×(
| 4 |
| 5 |
| 3 |
| 7 |
=7×
| 13 |
| 35 |
=2
| 3 |
| 5 |
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