问题 解答题
计算:
(1)
1
3
0.81
-2
6
1
4
+
1
10
82+62
;            
(2)
3-0.008
+
481
-
532
-
3-42
7
8
答案

(1)原式=

1
3
×0.9-2×
5
2
+
1
10
×
64+16

=

1
3
×0.9-2×
5
2
+
1
10
×10

=0.3-5+1

=3.7;

(2)原式=-0.2+3-2+3.5

=4.3.

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