Written Calculations: Addition                                     Addition Vocabulary

This page shows how we teach addition at Nettlestone. It is important to understand that children do not progress on to these formal written methods until they can add or subtract any pair of 2 digit numbers, and have used informal paper and pencil methods of addition as detailed on the mathematics home page.

1. Children are taught to partition numbers to help them develop mental strategies:

            43 + 55
             = 40 + 50 + 3 + 5
             = 90 + 8
                = 98
 

2. Leading to written recording, by adding the most (or least) significant digits first:

3. NB: It does not matter which order the numbers are added – this is called commutativity.

 

 

 

 

 

 

 

back to top