3.7*0.2 4.5的简便算法
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![3.7*0.2 4.5的简便算法](/uploads/image/f/275847-15-7.jpg?t=3.7%2A0.2+4.5%E7%9A%84%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95)
0.25*3.2*0.125=0.25*4*0.8*0.125=1*0.8*0.125=0.1
0.125*8.8=0.125*(8+0.8)=0.125*8+0.125*0.8=1+0.1=1.1
27*(1-0.01)=27-0.27=26.73
56*99=56*(100-1)=56*100-56*1=5600-56=5544
234+98=234+100-2=334-2=332
1/4+1/28+1/70+...+1/9700=1/(1*4)+1/(4*7)+1/(7*10)+...1/(97*100)=1/3(1/1-1/4)+1/3(1/4-1/7)+1/3(1/7-1/
360÷24=360÷6÷4=60÷4=15
6.2-0.54/1.8*5=6.2-0.9*0.6/0.9*2*5=6.2-1.5=4.7
5✘99+5=5✘(99+1)=5✘100=500再答:祝你学习进步!再答:不懂得可以问我再答:望采纳!
=100x125+8x125=12500+1000=13500
6.3=0.7x918=2x96.3/18=0.7/2=0.35
你把题拍完了没再问:九分之一补上再答:再答:给个好平再问:太给力了,你的回答完美解决了我的问题!
wy吴阳12345,5×99+5=5×99+5×1=5×(99+1)=5×100=500
原式=8.75*0.4*0.6+2.76=35*0.6+2.76=2.1+2.76=4.86
9.08*(2-0.2)-3.7=18.16-1.816-3.7=12.644
3.7×101.1-3.7=3.7(101.1-1)=3.7×100.1=3.7×(100+0.1)=3.7×100+3.7×0.1=370+0.37=370.37
原式=(3-0.44)×(4-0.3)=12-0.9-1.76+0.132=9.472