Friday, August 26, 2011

A Strategie I learnt in Maths

This week during Maths I have been learning to use tidy numbers to solve mathematical problems.

Tidy numbers are numbers that end with 0.

Here is a example.

84 + ? = 104
I then add 6 to 84 = 90
90 + 10 = 100
add 4 = 104

6 + 10 + 4 = ?

6 + 4 = 10 + 10 = 20