巧算题目在下面求~10800/45,125*640*25*7,7200/(90/27),24000/125/16,180
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巧算题目在下面求~
10800/45,125*640*25*7,7200/(90/27),24000/125/16,18000/72,2000/280*7,1540/91*13,(56*57*34)/(28*19*17),875/125.
10800/45,125*640*25*7,7200/(90/27),24000/125/16,18000/72,2000/280*7,1540/91*13,(56*57*34)/(28*19*17),875/125.
![巧算题目在下面求~10800/45,125*640*25*7,7200/(90/27),24000/125/16,180](/uploads/image/z/3401349-69-9.jpg?t=%E5%B7%A7%E7%AE%97%E9%A2%98%E7%9B%AE%E5%9C%A8%E4%B8%8B%E9%9D%A2%E6%B1%82%7E10800%2F45%2C125%2A640%2A25%2A7%2C7200%2F%EF%BC%8890%2F27%EF%BC%89%2C24000%2F125%2F16%2C180)
10800/45=(9*1200)/(5*9)=1200/5=240
125*640*25*7=125*8*10*8*25*7=1000*20*100*7=14000000
7200/(90/27)=(80*90)/(90/27)=80/(1/27)=80*27=2160
24000/125/16=24000*16/125=24000*16*8/125*8=3072000/1000=3072
18000/72=9*2000/(9*8)=2000/8=250
2000/280*7=2000*7/280=2000/40=50
1540/91*13=1540*13/91=220*7*13/(7*13)=220
(56*57*34)/(28*19*17)=(2*28*3*19*2*17)/(28*19*17)=2*3*2=12
875/125=(1000-125)/125=8-1=7
再问: 谢谢马上给你满意
125*640*25*7=125*8*10*8*25*7=1000*20*100*7=14000000
7200/(90/27)=(80*90)/(90/27)=80/(1/27)=80*27=2160
24000/125/16=24000*16/125=24000*16*8/125*8=3072000/1000=3072
18000/72=9*2000/(9*8)=2000/8=250
2000/280*7=2000*7/280=2000/40=50
1540/91*13=1540*13/91=220*7*13/(7*13)=220
(56*57*34)/(28*19*17)=(2*28*3*19*2*17)/(28*19*17)=2*3*2=12
875/125=(1000-125)/125=8-1=7
再问: 谢谢马上给你满意