EducatorSharmin

Grade - 4 Math Average In our daily conversations, we often use the word ‘average’. Without really understanding the meaning of it. The meaning is really simple. An average is a single number that gives an indication of most numbers or quantities in a group. Consider the following situation. Following are the marks obtained by a group of students of a particular class in a mathematics exam. The sum of the marks obtained by the five students is 400. If we divide the sum of the marks by 5, we get the average marks obtained by the five students. Average marks obtained = 400 / 5 = 80 This does not mean that all the students scored exactly 80 marks. Some of the students have scored more than 80 marks while some of them scored less than 80 marks, but by and large, most students scored around 80. The average marks tell us how many marks each student would have scored if all students scored the same marks. The average lies between the greatest and the least quantity. The average of a given num...