问题
解答题
(1)206×18+292 (2)14.4÷0.2×3 (3)(6
(4)[(1.5+2
(5)2005×20062006-2006×20052005 (6)2006-2005+2004-2003+2002-2001+…+4-3+2-1. |
答案
(1)206×18+292,
=3708+292,
=4000;
(2)14.4÷0.2×3,
=72×3,
=216;
(3)(6
-53 4
+17 12
)×5 12
,3 11
=(6
-59 12
+17 12
)×5 12
,3 11
=
×31 12
,3 11
=
;31 44
(4)[(1.5+2
)×1.6]÷2 3
,1 3
=[(
+3 2
)×8 3
]÷8 5
,1 3
=[
×25 6
]×3,8 5
=
×3,20 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.