Understanding the Laws of Arithmetic N5
In this resource from the DfE Standards Unit, students learn to interpret numerical expressions using words and area representations, recognise the order of operations and equivalent expressions and understand the distributive laws of multiplication and division
over addition (the expansion of brackets). Most students will have used the laws of arithmetic but some may have little understanding of the underlying principles. It is not enough to use a rote-learned rule like BODMAS or BIDMAS, as the introduction to the session will show. The session assumes that students are familiar with indices and with the area of simple compound shapes made up from rectangles joined together. (GCSE grades D-F)
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