Overview
Basic Arithmetic

Distributive Law

 Video Tutorial

Key Aspects:
  • Applying the Distributive Law
  • Expanding and Factorising Brackets
  • Using the Distributive Law to Simplify Calculations
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 Revision Cards

1) The Distributive Law

The Distributive Law for addition and subtraction, illustrated with an example showing 3×(4+2) as 3×4 + 3×2, using green and yellow balls.

2) Applying the Distributive Law

Applying the distributive law to expand and factorise brackets, with examples for 15 x (100 + 2) and 50 x (24 - 14) equations.

3) Distributive Law for Multiplying Numbers

The distributive law for multiplying numbers, such as 5*221, by factorising to 5*(200+20+1) and expanding to 5*200+5*20+5*1.

4) Remarks on the Distributive Law

Explanation that the distributive law generally does not simplify division, showing the example (19+2)/3.

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 Exercises

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