问题 解答题
计算下面各题,能简算的必须简算.
3.5×6.2+3.8×3.56.25÷1.25÷0.8.
答案

(1)3.5×6.2+3.8×3.5,

=3.5×(6.2+3.8),

=3.5×10,

=35;

(2)6.25÷1.25÷0.8,

=6.25÷(1.25×0.8),

=6.25÷1,

=6.25.

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