问题 解答题
简便计算.
①0.8×7.7+2.3×0.8

②36×10.1.
答案

①0.8×7.7+2.3×0.8,

=0.8×(7.7+2.3),

=0.8×10,

=8;

②36×10.1,

=36×10+36×0.1,

=360+3.6,

=363.6.

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