Expanded addition: 3-digit numbers

Expanded addition really helps to show what is happening when using the formal written method of addition.

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Techniques to help with understanding written methods subtraction. Jottings only at this stage, which some find rather complicated.

Moving towards the standard method of written addition, adding the least significant figures first (ones).

Addition using the formal method for 2-digit numbers.

Today we are looking at the formal, written method of addition for adding two, 2-digit numbers.