题目内容
脱式计算.
(1)375+450÷18×25
(2)8.5×3-5.85÷1.3
(3)
-(
-
)÷
(4)(
+
)÷
×
.
(1)375+450÷18×25
(2)8.5×3-5.85÷1.3
(3)
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| 3 |
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| 3 |
| 4 |
(4)(
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| 9 |
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| 3 |
| 10 |
(1)375+450÷18×25,
=375+25×25,
=375+625,
=1000;
(2)8.5×3-5.85÷1.3,
=25.5-4.5,
=21;
(3)
-(
-
)÷
,
=
-
×
,
=
-
,
=
;
(4)(
+
)÷
×
,
=
×
×
,
=
.
=375+25×25,
=375+625,
=1000;
(2)8.5×3-5.85÷1.3,
=25.5-4.5,
=21;
(3)
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| 2 |
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| 4 |
| 3 |
| 5 |
| 3 |
| 4 |
=
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| 20 |
| 4 |
| 3 |
=
| 1 |
| 2 |
| 1 |
| 5 |
=
| 3 |
| 10 |
(4)(
| 7 |
| 9 |
| 1 |
| 3 |
| 8 |
| 15 |
| 3 |
| 10 |
=
| 10 |
| 9 |
| 15 |
| 8 |
| 3 |
| 10 |
=
| 5 |
| 8 |
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