问题 解答题
计算:
195+196+197+198+199116-48+84.
答案

(1)195+196+197+198+199,

=200×5-(5+4+3+2+1),

=1000-15,

=985;

(2)116-48+84.

=116+84-48,

=200-48,

=152.

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