题目内容
计算:
1375+450÷18×25
×[
-(
-
)].
1375+450÷18×25
| 8 |
| 9 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
(1)1375+450÷18×25
=1375+25×25,
=1375+625,
=2000;
(2)
×[
-(
-
)]
=
×[
-
+
],
=
×[
+
-
],
=
×[1-
],
=
×
,
=
.
=1375+25×25,
=1375+625,
=2000;
(2)
| 8 |
| 9 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
=
| 8 |
| 9 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
=
| 8 |
| 9 |
| 3 |
| 4 |
| 1 |
| 4 |
| 7 |
| 16 |
=
| 8 |
| 9 |
| 7 |
| 16 |
=
| 8 |
| 9 |
| 9 |
| 16 |
=
| 1 |
| 2 |
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