During Ms Huang’s lessons students have been exploring a variety of calculations including the * distributive law of multiplication*, that

**a x (b + c) = a x b + a x c**. Through procedural variation students got to grips with the concept, after which it was time to utilise it to

*calculate the answer to the following questions.*

**efficiently**There is more than one way to calculate the answer to these questions, but students were specifically asked to use the concept to make their calculations more efficient – can you see how?

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