Distributive: Difference between revisions
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imported>Doug Williamson (Created page with "__NOTOC__ ''Maths.'' ===Multiplication is distributive over addition=== The distributive property of multiplication over addition means that brackets within expressions can...") |
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Revision as of 15:21, 4 October 2015
Maths.
Multiplication is distributive over addition
The distributive property of multiplication over addition means that brackets within expressions can be 'multiplied out' when the brackets contain additions.
Example
3 x (4 + 5) gives the same result as:
(3 x 4) + (3 x 5).
In the first case:
3 x (4 + 5)
= 3 x 9
= 27
In the second case:
(3 x 4) + (3 x 5)
= 12 + 15
= 27
