This document describes a doubling and halving strategy for multiplying numbers. It explains that to multiply numbers like 4x5, you first half one number (4 to 2) and double the other (5 to 10). Then you calculate the result of the doubled number times the halved number to get the answer. It provides example multiplication problems to try using this strategy and credits the creators of the document.

1. Doubling and halving MULTIPLYING USING Doubling and halving is a mathematic strategy to times and add.

2. Example question 4x5 (4 sets of 5)

3. STEP 1: Halve one of the numbers e.g. four becomes two.

4. double the other number e.g. five becomes ten. STEP 2:

5. Work out two times ten to get your answer. step 3

6. TRY THESE…? 4X3 6X4 5X6 8X2 2X9 12X3

7. Credits Director: Jack Solomon Artist: Jack Gray Word designer: Oliver Miller Editor: Finnbar Dowdall

8. BYEEEEEE!!!