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Section N1: Number basics and indices
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Section N1: Introduction, printable handouts and other resourcesLecture1.1
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N1a: Key terms, number types and propertiesLecture1.2
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N1b: Rules of divisibilityLecture1.3
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N1c: Four operations with integersLecture1.4
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N1d Place value, ordering and powers of 10Lecture1.5
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Quiz: lessons N1a-d 15 questionsQuiz1.1
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N1e: Directed (positive and negative) numbersLecture1.6
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N1f: Order of operations (BIDMAS/GEMA)Lecture1.7
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N1g: Multiplying and dividing with decimalsLecture1.8
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N1h: Deductions from known resultsLecture1.9
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N1i: Using a calculatorLecture1.10
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Quiz: lessons N1e-i 12 questionsQuiz1.2
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N1j: RoundingLecture1.11
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N1k: Bounds, error intervals, truncationLecture1.12
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N1l: Using 1 significant figure to estimate calculationsLecture1.13
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N1m: Factors, multiples, HCF, LCMLecture1.14
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Quiz: lessons N1j-m 11 questionsQuiz1.3
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N1n: IndicesLecture1.15
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N1o: Standard formLecture1.16
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Quiz: lessons N1n-o 10 questionsQuiz1.4
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Section N2: Fractions, decimals and percentages
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Section N2: Introduction and printable handoutsLecture2.1
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N2a Shaded fraction of a shapeLecture2.2
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N2b Finding a fraction of an amount, and increasing/decreasing by a fractionLecture2.3
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N2c Equivalent fractionsLecture2.4
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N2d One quantity as a fraction of anotherLecture2.5
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N2e Improper fractions and mixed numbersLecture2.6
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Quiz: lessons N2a-e 10 questionsQuiz2.1
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N2f Adding and subtracting fractionsLecture2.7
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N2g Multiplying fractionsLecture2.8
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N2h Dividing by a fraction, and reciprocalsLecture2.9
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Quiz: lessons N2f-h 10 questionsQuiz2.2
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N2i Fraction/decimal/percentage conversions and equivalentsLecture2.10
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N2j Problems with mixed fractions, decimals and percentagesLecture2.11
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Quiz: lessons N2i-j 9 questionsQuiz2.3
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N2k Finding a simple percentage of an amountLecture2.12
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N2l Expressing one quantity as a percentage of anotherLecture2.13
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N2m Increasing/decreasing an amount by a percentageLecture2.14
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N2n Simple interestLecture2.15
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N2o Finding percentage profit / change / errorLecture2.16
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N2p Using a multiplierLecture2.17
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N2q Reverse percentages (finding the original amount)Lecture2.18
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Quiz: lessons N2k-q 13 questionsQuiz2.4
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Section N3: Ratio and proportion
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Section N3: Introduction and printable handoutsLecture3.1
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N3a Ratios and fractionsLecture3.2
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N3b Sharing an amount in a ratioLecture3.3
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N3c Harder problems with sharing in a ratioLecture3.4
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N3d Manipulating ratiosLecture3.5
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N3e Map scalesLecture3.6
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Quiz: lessons N3a to e 9 questionsQuiz3.1
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N3f Understanding and using proportionLecture3.7
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N3g Best buysLecture3.8
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N3h “Fraction of a fraction” problemsLecture3.9
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N3i Proportional reasoning problems 1Lecture3.10
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N3j Proportional reasoning problems 2 (three variables)Lecture3.11
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Quiz: lessons N3f-j 8 questionsQuiz3.2
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Quiz: lessons N2f-h