Subtraction
This month we will be learning how to subtract starting with:
- TU block sums (sometimes referred to as chimney sums)
- HTU block sums
- HTU block sums using decomposition borrowing tens
- HTU block sums using decomposition borrowing hundreds
- HTU block sums using decomposition borrowing tens & hundreds
Decomposition means: breaking a problem/sum into smaller parts to make it easier.
Watch the video below, then try the worksheets.