National curriculum code and descriptions (partially) covered by the layers.
N15round 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
N16apply and interpret limits of accuracyincluding upper and lower bounds