÷ ÷1
×28= ÷ = × 60%= × =
10÷40%= 24÷ = + × = 1÷ =
“5路公共汽车从起点站出发,向西偏北50°方向行驶2km后向西行驶4km,最后向南偏西30°方向行驶3km到达终点站。”