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.
用简便方法计算:
(1)2600÷25
(2)2700÷45
(3)496÷16.
(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.