Halving Strategy Division
Use a range of multiplicative strategies when operating on whole numbers. Ao elaboration and other teaching resources.
Multiplication And Division Strategies Division Strategies Math
5 x 16 10 x 8 80 or 5 x 16 10 x 8 20 x 4 80 1.
Halving strategy division. Solve multiplication and division problems by using proportional adjustment. Right there lies the half and the double or 2 groups of 2 groups of 8. Help students to learn division by 4 facts using a halving strategy. Introduce halving and doubling as strategies that can be used to solve multiplication and division problems involving three digit numbers. The power of halving overview the skill of halving numbers is very useful for a range of in the head calculations including division by 2 4 and 8. Use the strategy of doubling one factor and halving the other to simplify and solve the following problems. If you halve a number such as 28 getting 14 then halve 14 to get 7 you will find the result of dividing by 4. Doubling and halving we can simplify some multiplication problems by doubling one factor and halving the other factor. Work through examples to demonstrate the strategy. Doubling and halving to find factors doubling and halving tripling and thirding etc is a very useful strategy for finding a full set of factors. In order to apply a halving and doubling or doubling and halving strategy we must decompose the number to be halved into a half and double in this case decomposing 4 into factors of 2 and 2. For example 1 x 60 2 x 30 4 x 15 look for what goes into 15. Start with 1 x n and double and halve from there. Since many students find division one of the most difficult skills to master this can be extremely helpful to them. Number framework stage 7.
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