问题 解答题
脱式计算.
144×3×5300-86×3(84+116)×4
304+106×5102×4×5350+15×6.
答案

(1)144×3×5,

=432×5,

=2160;

(2)300-86×3,

=300-258,

=42;

(3)(84+116)×4,

=200×4,

=800;

(4)304+106×5,

=304+530,

=834;

(5)102×4×5,

=408×5,

=2040;

(6)350+15×6,

=350+90,

=440.

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