早教吧作业答案频道 -->其他-->
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.
看了你能利用商不变的性质很快算出下...的网友还看了以下:
6.3÷0.021=1.5÷0.03=0.43×5=0.7×8-0.6=72÷24=5×0.7=6 2020-04-07 …
把0.5•8•50.5•80.580.5850.588从小到大排列.0.58<0.585<0.5• 2020-04-07 …
直接写出得数:0.5+0.4=0.90.9;1.4+2.7=4.14.1;8.2+3.7=11.9 2020-04-07 …
(2011•阳谷县)直接写得数.0.13=2.7-0.25-75%=32×0.25=3.2÷10% 2020-04-07 …
有效数字的舍入规则我看不懂!1、当保留n位有效数字,若后面的数字小于第n位单位数字的0.5就舍掉. 2020-04-26 …
还是lingo问题road(country,country):length,xie,c;endse 2020-05-13 …
设f(x,y)在(0,0)处连续,limx,y→0f(x,y)-1ex2+y2-1=4,则()A. 2020-05-14 …
解方程:(1)2分之2x-3-6分之x-5=3分之7-2x(2)0.25分之2x+1-0.5x分之 2020-05-16 …
如何解方程x-2/0.2-x+1/0.5=3(2)0.04x+0.9/0.5-x-1/2=0.03 2020-05-17 …
ansys直接建立有限元模型问题finish/clear/prep7n,1,0,0,0n,2,0, 2020-05-17 …