6.4x0.55怎么数式计算? - : 0.67x45+0.55x67=67*0.45+0.55*67=67*(0.45+0.55)=67*1=67
102X0.55简便计算 - : 102X0.55=100*0.55+2*0.55=55+1.1=56.1 希望能帮到你,请采纳正确答案.你的点赞或采纳是我继续帮助其他人的动力
4.37x0.55+5.63x0.55的答案和过程? - : 4.37*0.55+5.63*0.55=(4.37+5.63)*0.55=10*0.55=5.5
6.29–6.29ⅹ0.55的简便计算 - : 6.29–6.29ⅹ0.55=6.29x(1-0.55)=6.29x0.45=2.8305
36.5x0.69十6.35x6.9 - : 3.65*6.9+6.35*6.9
2.08x0.55列竖式计算? - : 3.2*2.08=6.656
3.6x0.55的积有几位小数?: 把两个乘数的小数点后面的个数加起来,就可以知道是有三位小数.
0.35x+0.55(150 - x)=70.5,小学方程,要用等式的性质解,过程要清晰.急急急,满意 - : 0.35x+0.55(150-x)=70.5,0.35x+82.5-0.55x=70.5,-0.2x+82.5=70.5,-0.2x+82.5-82.5=70.5-82.5,-0.2x=-12,-0.2x*5=-12*5,-x=-60,x=60.
0.45x3.45+0.55x0.55+2.9x0.55用简便方法做 - : 0.45x3.45+0.55x0.55+2.9x0.55=(1-0.55)x3.45+0.55x0.55+2.9x0.55=1x3.45-0.55x3.45+0.55x0.55+2.9x0.55=3.45-(3.45-0.55-2.9)x0.55=3.45-0=3.45 再看看别人怎么说的.
102x0.55简算怎么算: 102x0.55=(100+2)x0.55=100x0.55+2x0.55=55+1.1=56.1