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脱式计算(能简便算的要简算,写出主要步骤)①13.6...

2-6/13÷9/29-2/3 解:根据约分和通分的运用, 原式=2-6/13÷9/29-2/3 =2-6/13x29/9-2/3 =2-58/39-2/3 =2-1-19/39-26/39 =1-45/39 =-6/39 =-2/13

13.6+1.4÷(18.2-17.8)=13.6+1.4÷0.4=13.6+3.5=17.10.72÷[3.6×(0.51-0.49)]=0.72÷[3.6×0.02]=0.72÷0.072=10 10.01×12.6-12.6×0.01=126.126-0.126=12610.9×3.23-3.23=35.207-3.23=31.977

(1)12.56-6.64-3.36 =12.56-(6.64+3.36)=12.56-10=2.56;(2)45.5-(0.98+5.5)=45.5-5.5-0.98=40-0.98=39.02;(3)13.6+7.94+6.4=13.6+6.4+7.94=20+7.94=27.94;(4)10+0.009+0.191=10+(0.009+0.191)=10+0.2=10.2;(5)15-3.7-4.64=1...

①624-298=624-(300-2)=624-300+2=324+2=326②0.8×〔13-(3.012+5.28)〕=0.8×(13-5.292)=0.8×7.708=6.1664③19.4×0.9+0.1×19.4=19.4×(0.9+0.1)=19.4×1=19.4④147+87+53+11=(147+53)+(87+11)=200+98=298⑤5.6-0.71-0.29=5.6-(0.71+0.29)=...

解: 47/6*(39/10)+13/6*3.9 =47/6*3.9+13/6*3.9 =(47/6+13/6)*3.9 =60/6 *3.9 =10*3.9 =39

13.6×9.9-13.6×8.9 =13.6×(9.9-8.9) =13.6×1 =13.6 望采纳

1) 5.7-1.8= 2) 99×84= 3) 1.02×4= 4) 7.34-4= 5) 0.45÷0.15= 6) 800×0.03= 7) 3.27-1.27+4.9= 8) 11×25= 9) 0.14×50= 10) 0.81÷0.27= 11) 0.24×0.5= 12) 18.2+1.8= 13) 1.5×3= 14) 0.16×30= 15) 5.38+0.45+1.55= 16) 0.56÷0.8= 17) 3.6÷0.09= 1...

=13.5+6.5×1+6.5×0.5 =13.5+6.5+3.25 =20+3.25 =23.25

您好,寒樱暖暖为你解答: 原式 =102.6+2.8 =105.4 如果你认可我的回答, 请及时点击【采纳为满意回答】按钮,(或在客户端右上角评价点【满意】) 你的采纳, 是我前进的动力! 也会给你带去财富值的。 如有不明白, 可以追问,直到完成弄懂此题!

13.7+6.24*7.5+4.58 =13.7+1.56*30+4.58 =13.7+46.8+4.58 =60.5+4.58=65.08

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