Stage 1: Using a number line
Steps in addition can be recorded on a number line.
The steps often bridge through a multiple of 10.
8 + 7 = 15
48 + 36 = 84
or:
Stage 2: Using partitioning
Record steps in addition using partitioning:
47 + 76 = 47 + 70 + 6 = 117 + 6 = 123
47 + 76 = 40 + 70 + 7 + 6 = 110 + 13 = 123
Partitioned numbers are then written under one another:
Stage 3: Expanded method in columns
Write the numbers in columns.
Adding the tens first:
Adding the ones first:
Stage 4: Column method
