问题 解答题
脱式计算,能简算的要简算.
27×34-51425×(40+4)4864÷8×756×99﹢56.
答案

(1)27×34-514,

=918-514,

=404;

(2)25×(40+4),

=25×40+25×4,

=1000+100,

=1100;

(3)4864÷8×7,

=608×7,

=4256;

(4)56×99﹢56,

=56×(99+1),

=56×100,

=5600.

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