问题 解答题
脱式计算题:
(1)1.625×2005+2005×
3
8
-2005
(2)400-14
13
27
-85
14
27
答案

(1)1.625×2005+2005×

3
8
-2005,

=2005×(1.625+0.375-1),

=2005×(2-1),

=2005×1,

=2005;

(2)400-14

13
27
-85
14
27

=400-(14

13
27
+85
14
27
),

=400-100,

=300.

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