问题
解答题
用简便方法计算下列各题.
(1)825÷25
(2)47700÷900.
答案
(1)825÷25,
=(825×4)÷(25×4),
=3300÷100,
=33;
(2)47700÷900,
=(47700÷100)÷(900÷100),
=477÷9,
=53.
用简便方法计算下列各题.
(1)825÷25
(2)47700÷900.
(1)825÷25,
=(825×4)÷(25×4),
=3300÷100,
=33;
(2)47700÷900,
=(47700÷100)÷(900÷100),
=477÷9,
=53.