Maths | Averages

This week for maths we learnt about averages. 

Averages is adding up all the numbers and then dividing them by how many numbers there are.

We first added up all the numbers together from each team. The blue team had 186 points, yellow had 182 points, red had 182 point and green had 174 points. 

I am going to show how to get the average for 186: First you divide 186 by 9 which equals 20.7 . People usually think it will be 20.6 but your wrong. You have to round the number. To round the decimal point up it you can use the number 5, 6, 7, 8 , 9. The numbers that make the decimal point go down are 4, 3, 2 , 1.  That's why the number is 20.7 when you divide 182 by 9 .