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2.4÷x=0.2×40

x=2.4/0.2×40 =0.3

x/0.2=4:2.4 2.4x=4X2 x=8/2.4 x=10/3

1.2÷(x÷0.2)=2.4 x÷0.2=1.2÷2.4 x÷0.2=0.5 x=0.5×0.2 x=0.1

解:原式=2.4÷3/5-2.4x2.6 =2.4x5/3-2.4x(2+0.6) =4-2.4x2-2.4x6 =4-4.8-14.4 =-0.8-14.4 =-15.2

6.8×2.4÷0.2怎么简算 解:根据结合律的运用. 原式=6.8x(2.4÷0.2) =6.8x12 =6.8x(10+2) =6.8x10+6.8x2 =68+13.6 =81.6

2.4 ㎜×0.2㎜=0.48mm=0.048cm

(x-1.80)÷2=(x+2.40)÷4 4(x-1.80)=2(x+2.40) 4x-7.20=2x+4.80 4x-2x=4.80+7.20 2x=12 x=6 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!! 朋友,请【采纳答案】,您的采纳是我答题的动力,如果没有明白...

3x÷0.4=2.4 3x=2.4*0.4 3x=0.96 x=0.96/3 x=0.32 谢谢,请采纳

请问简便计算2.4x0.5= 2.4x0.5 =2.4÷2 =1.2

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