问题 解答题
(1)(3.14-π)0-
4
9
×
(-3)2
-
3-8

(2)598×602-5992(用简便方法计算).
答案

(1)原式=1-

2
3
×3-(-2)

=1-2+2

=1;

(2)598×602-5992

=(600-2)(600+2)-(600-1)2

=6002-4-6002+1200-1

=1195.

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