# Algebra/Arithmetic/Subtraction Problems

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The latest reviewed version was checked on

*5 October 2017*. There is 1 pending change awaiting review.Return to Subtraction | Arithmetic Subtraction Problems | Move on to Multiplication |

Subtraction can be used to model three situations:

- Separation - Where you have a total count of objects, a count of objects from part of the group, and you want to find out how many objects are left.
- Comparison - Where you have a count for two groups of objects and want to find the difference between the two groups.
- Part-Whole - Where you know how many objects you had and how many objects are left and you want to know the total.