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你能利用商不变的性质很快算出下面各题的商吗?6300÷7008100÷9003000÷1254800÷2538700÷9008000÷1600.
题目详情
你能利用商不变的性质很快算出下面各题的商吗?
6300÷700 | 8100÷900 | 3000÷125 |
4800÷25 | 38700÷900 | 8000÷1600. |
▼优质解答
答案和解析
①6300÷700,
=(6300÷100)÷(700÷100),
=63÷7,
=9;
②8100÷900,
=(8100÷100)÷(900÷100),
=81÷9,
=9;
③3000÷125,
=(3000×8)÷(125×8),
=24000÷1000,
=24;
④4800÷25,
=(4800×4)÷(25×4),
=19200÷100,
=192;
⑤38700÷900,
=(38700÷100)÷(900÷100),
=387÷9,
=43;
⑥8000÷1600,
=(8000÷100)÷(1600÷100),
=80÷16,
=5.
=(6300÷100)÷(700÷100),
=63÷7,
=9;
②8100÷900,
=(8100÷100)÷(900÷100),
=81÷9,
=9;
③3000÷125,
=(3000×8)÷(125×8),
=24000÷1000,
=24;
④4800÷25,
=(4800×4)÷(25×4),
=19200÷100,
=192;
⑤38700÷900,
=(38700÷100)÷(900÷100),
=387÷9,
=43;
⑥8000÷1600,
=(8000÷100)÷(1600÷100),
=80÷16,
=5.
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