Fractions, decimals and percentages
What students need to learn:
N10 work interchangeably with terminating decimals and their corresponding
fractions (such as 3.5 and 7
2
or 0.375 or 3
8
); change recurring decimals
into their corresponding fractions and vice versa
N11 identify and work with fractions in ratio problems
N12 interpret fractions and percentages as operators
Measures and accuracy
What students need to learn:
N13 use standard units of mass, length, time, money and other measures
(including standard compound measures) using decimal quantities where
appropriate
N14 estimate answers; check calculations using approximation and estimation,
including answers obtained using technology
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
N16 apply and interpret limits of accuracy, including upper and lower bounds
2. Algebra
Notation, vocabulary and manipulation
What students need to learn:
A1 use and interpret algebraic manipulation, including:
• ab in place of a × b
• 3y in place of y + y + y and 3 × y
• a
2 in place of a × a, a
3 in place of a × a × a, a
2
b in place of a × a × b
• a
b in place of a ÷ b
? coefficients written as fractions rather than as decimals
? brackets
A2 substitute numerical values into formulae and expressions, including
scientific formulae
A3 understand and use the concepts and vocabulary of expressions, equations,
formulae, identities, inequalities, terms and factors

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