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Interactive video lesson plan for: Multiplication trick for fast calculation

Activity overview:

How to multiply with multiples of nine - calculating the fast way with this cool math trick!
Multiples of nine include numbers such a eighteen, twenty seven, thirty six and so on.
To do this technique using this math lesson, you change the number that is a multiple of nine into an easier nearby tens number - and then you'll be calculating with speed and accuracy.

Tagged under: maths,tricks,fast,calculation,multiple,multiply,times,time,

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