一根铁丝,截去5段,每段7米,还剩22米,这根铁丝原来多少米?;k(I5r-a-d;Y*X.W1S
算式:提示-Q(e9L*_9z7k0D;k(I5r-a-d;Y*X.W1S
答:这根铁丝原来长'o(X-f,y0B3A8O'I.T,T9I米。;k(I5r-a-d;Y*X.W1S