把12米长的绳子平均分成4段，每段多少米？0{6C6l-g4X3}0g)Q
算式：提示4T2~5X-Y2j+h6h)d:S;s'V*^:R0{6C6l-g4X3}0g)Q
答：每段7[(B9@,N7F*].J(}+X._7g2P米。0{6C6l-g4X3}0g)Q