题目内容
| 用简便方法计算. 900÷60= | 840÷40= | 5800÷200= | 3600÷300= |
(1)900÷60
=900÷(30×2)
=900÷30÷2
=30÷2
=15;
(2)840÷40
=84÷4
=42;
(3)5800÷200
=58÷2
=29;
(4)3600÷300
=36÷3
=12.
=900÷(30×2)
=900÷30÷2
=30÷2
=15;
(2)840÷40
=84÷4
=42;
(3)5800÷200
=58÷2
=29;
(4)3600÷300
=36÷3
=12.
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