问题 解答题

用简便方法计算:

(1)2600÷25

(2)2700÷45

(3)496÷16.

答案

(1)2600÷25,

=(2600×4)÷(25×4),

=10400÷100,

=104;

(2)2700÷45,

=2700÷(9×5),

=2700÷9÷5,

=300÷5,

=60;

(3)496÷16,

=496÷(8×2),

=496÷8÷2,

=62÷2,

=31.

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