# Modelling negatives

- Written by Maths Hub
- font size decrease font size increase font size

Just a few images that some may find helpful when describing calculations with negatives

Multiplying involves the concept of an "enlargement" operation.

Then the distinction between the multiplying effect of 1 (stays the same) and -1 (flips it over)

Which also works on negatives

...and so we can multiply by any sized positive or negative number.

Now I know I haven't included "taking away" negatives but my explanation takes more than one image to explain - but consider 5 - (-2). Since we know that 5 = 7-2, then 5 - (-2) can be written as (7-2) - (-2). Using this argument alongside appropriate diagrams with learners has proven to be succesful.