estimate and significant figures

sample Q from each layer	teach-learn questions
layer	1	2	3	4	5	6	7	8	9	10	11	12
practise-learn worksheets
print hints	d/s 2pp	s/s 2pp	s/s 2pp	s/s 2pp	d/s 2pp	s/s 2pp	s/s 2pp	d/s 2pp	d/s 2pp

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.

N15 round numbers and measures to an appropriate degree of accuracy (e.g. to a specified number of decimal places or significant figures); use inequality notation to specify simple error intervals due to truncation or rounding

e.g. x = 2.3 correct to 2 s.f. implies that 2.25 ≤ x < 2.35

N16 apply and interpret limits of accuracy including upper and lower bounds