一座长500米的大桥俩旁挂彩灯,每俩个彩灯相隔5米,从桥头到桥尾共挂了几盏灯?
一座长500米的大桥俩旁挂彩灯,每俩个彩灯相隔5米,从桥头到桥尾共挂了几盏灯?
数学人气:963 ℃时间:2019-10-17 02:42:43
优质解答
500/5+1=101
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