题目内容
怎样简便就怎样算.
375+450×25
9.07-22.78÷3.4
1.25×14×0.8
(
×3.2+0.8)×
5.65×
+
÷
.
375+450×25
9.07-22.78÷3.4
1.25×14×0.8
(
| 1 |
| 4 |
| 5 |
| 9 |
5.65×
| 5 |
| 3 |
| 7 |
| 20 |
| 3 |
| 5 |
(1)375+450×25,
=375+11250,
=11625;
(2)9.07-22.78÷3.4,
=9.07-6.7,
=2.37;
(3)1.25×14×0.8,
=1.25×0.8×14,
=1×14,
=14;
(4)(
×3.2+0.8)×
,
=(0.8+0.8)×
,
=
×
,
=
;
(5)5.65×
+
÷
,
=5.65×
+
×
,
=(5
+
)×
,
=6×
,
=10.
=375+11250,
=11625;
(2)9.07-22.78÷3.4,
=9.07-6.7,
=2.37;
(3)1.25×14×0.8,
=1.25×0.8×14,
=1×14,
=14;
(4)(
| 1 |
| 4 |
| 5 |
| 9 |
=(0.8+0.8)×
| 5 |
| 9 |
=
| 8 |
| 5 |
| 5 |
| 9 |
=
| 8 |
| 9 |
(5)5.65×
| 5 |
| 3 |
| 7 |
| 20 |
| 3 |
| 5 |
=5.65×
| 5 |
| 3 |
| 7 |
| 20 |
| 5 |
| 3 |
=(5
| 13 |
| 20 |
| 7 |
| 20 |
| 5 |
| 3 |
=6×
| 5 |
| 3 |
=10.
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