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F H N1 Ordering numbers and inequality symbols F H N2 Four operations and place value F H N3 Inverse operations and order of operations F H N4 Primes, factors, multiples, HCF and LCM F H+ N5 Systematic listing and the product rule F H+ N6 Powers and roots F H+ N7 Roots and integer and fractional indices F H+ N8 Exact calculation: fractions, surds and π F H N9 Standard form F H+ N10 Fractions and recurring decimals F H N11 Fractions in ratio problems F H N12 Fractions and percentages as operators F H N13 Standard and compound units F H N14 Estimation and checking answers F H N15 Rounding and error intervals F H+ N16 Upper and lower bounds