Partitioning to add

Some of us this week have been partitioning numbers to help us add 2 2 digit number together. We have also used diennes to help us see the value of each number.

Diennes

We use the diennes above so children have a visual representation of numbers and can see their value. 

The yellow cubes-= 1

The green sticks =10

The blue squares = 100

The red cube = 1000

This is how we have been recording our work this week:

40+20= 60

7+5=12

60+10=70

70+2=72