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(1)206×18+292(2)14.4÷0.2×3(3)(634−5712+1512)×311(4)[(1.5+223)×1.6]÷13(5)2005×20062006-2006×20052005(6)2006-2005+2004-2003+2002-2001+…+4-3+2-1.
题目详情
(1)206×18+292
(2)14.4÷0.2×3
(3)(6
−5
+1
)×
(4)[(1.5+2
)×1.6]÷
(5)2005×20062006-2006×20052005
(6)2006-2005+2004-2003+2002-2001+…+4-3+2-1.
(2)14.4÷0.2×3
(3)(6
3 |
4 |
7 |
12 |
5 |
12 |
3 |
11 |
(4)[(1.5+2
2 |
3 |
1 |
3 |
(5)2005×20062006-2006×20052005
(6)2006-2005+2004-2003+2002-2001+…+4-3+2-1.
▼优质解答
答案和解析
(1)206×18+292,
=3708+292,
=4000;
(2)14.4÷0.2×3,
=72×3,
=216;
(3)(6
-5
+1
)×
,
=(6
-5
+1
)×
,
=
×
,
=
;
(4)[(1.5+2
)×1.6]÷
,
=[(
+
)×
]÷
,
=[
×
]×3,
=
×3,
=20;
(5)2005×20062006-2006×20052005,
=2005×2006×10001-2006×2005×10001,
=0;
(6)2006-2005+2004-2003+2002-2001+…+4-3+2-1,
=(2006-2005)+(2004-2003)+…+(4-3)+(2-1),
=1×1003,
=1003.
=3708+292,
=4000;
(2)14.4÷0.2×3,
=72×3,
=216;
(3)(6
3 |
4 |
7 |
12 |
5 |
12 |
3 |
11 |
=(6
9 |
12 |
7 |
12 |
5 |
12 |
3 |
11 |
=
31 |
12 |
3 |
11 |
=
31 |
44 |
(4)[(1.5+2
2 |
3 |
1 |
3 |
=[(
3 |
2 |
8 |
3 |
8 |
5 |
1 |
3 |
=[
25 |
6 |
8 |
5 |
=
20 |
3 |
=20;
(5)2005×20062006-2006×20052005,
=2005×2006×10001-2006×2005×10001,
=0;
(6)2006-2005+2004-2003+2002-2001+…+4-3+2-1,
=(2006-2005)+(2004-2003)+…+(4-3)+(2-1),
=1×1003,
=1003.
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