distributive

This term states that multiplying a number by a group of numbers which have been added together, is the same as doing each multiplication separately:

a × (b + c) = a × b + a × c for all values of a, b, c.

For example:

        4 (50 + 6)
    = (4 × 50) + (4 × 6)
    = 200 + 24
    = 224

This is also true about multiplying a number by a group of numbers which have been subtracted.

For example:

        4 × (50 – 2)
    = (4 × 50) – (4 × 2)
    = 200 – 8
    = 192

In both examples above, the 4 is ‘distributed’.