doubling and halving by fjoj
Post on 26-May-2015
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Doubling and halving
MULTIPLYING USING
Doubling and halving is a mathematic strategy to times and add.
Example question
4x5 (4 sets of 5)
STEP 1:
•Halve one of the numbers e.g. four becomes two.
• double the other number e.g. five becomes ten.
•Work out two times ten to get your answer.
TRY THESE…?
• 4X3
• 6X4
• 5X6
• 8X2
• 2X9
• 12X3
Credits
Director: Jack Solomon
Artist: Jack Gray
Word designer: Oliver Miller
Editor: Finnbar Dowdall
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