There are one hundred and twenty students in Grade 5.senventy eight of them walk to school.the rest

问题描述:

There are one hundred and twenty students in Grade 5.senventy eight of them walk to school.the rest
By bus.how many children go to school by bus

五年级有120个学生.他们中78个人步行去学校.剩下的坐公交车.有多少学生坐公交车去学校.
120-78=42【个】