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能简算的要简算7.6×35%+6.5×0.76(115+217)×15×17200320032006+2004÷200420042005.
题目详情
能简算的要简算
7.6×35%+6.5×0.76
(
+
)×15×17
2003
+2004÷2004
.
7.6×35%+6.5×0.76
(
| 1 |
| 15 |
| 2 |
| 17 |
2003
| 2003 |
| 2006 |
| 2004 |
| 2005 |
▼优质解答
答案和解析
(1)7.6×35%+6.5×0.76,
=7.6×0.35+0.65×7.6,
=(0.35+0.65)×7.6,
=7.6;
(2)(
+
)×15×17,
=
×15×17+
×15×17,
=17+30,
=47;
(3)2003
+2004÷2004
,
=2003
+2004÷
,
=2003
+2004×
,
=2003
+
,
=2003
,
=2004
.
=7.6×0.35+0.65×7.6,
=(0.35+0.65)×7.6,
=7.6;
(2)(
| 1 |
| 15 |
| 2 |
| 17 |
=
| 1 |
| 15 |
| 2 |
| 17 |
=17+30,
=47;
(3)2003
| 2003 |
| 2006 |
| 2004 |
| 2005 |
=2003
| 2003 |
| 2006 |
| 2004×2005+2004 |
| 2005 |
=2003
| 2003 |
| 2006 |
| 2005 |
| 2004×2006 |
=2003
| 2003 |
| 2006 |
| 2005 |
| 2006 |
=2003
| 4008 |
| 2006 |
=2004
| 1001 |
| 1003 |
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