# BiDMAS

sample Q from each layer | teach-learn questions | |||||

layer | 1 | 2 | 3 | 4 | 5 | 6 |

practise-learn worksheets | ||||||

print hints | d/s 2 per page | d/s 2 per page | d/s 2 per page | d/s 1 per page |

see How to ... download a practise-learn pdf worksheet from learning resources if you are not sure how to download a document

**NC information**

National curriculum code and descriptions (partially) covered by the layers.

N3 use conventional notation for priority of operations, including brackets, powers, roots and reciprocals.

N6 use positive integer powers and associated real roots (square, cube and higher), recognise powers of 2, 3, 4, 5 **estimate powers and roots of any given positive number**

N7 calculate with roots, and with integer indices