1  Decimals 2  Multiplying decimals 3  Improper fractions 4  Mixed numbers 5  Addition and subtraction of fractions 6  Multiplication of fractions 7  Division of fractions 8  Solving equations 9  Solving equations with brackets 10 Solving equations 11 Changing an expression in words to a mathematical expression 12 Solving worded questions 13 Estimating 14 Squares 15 Cubes 16 Exponential equations 17 Exponents 18 Square roots 19 Changing numbers from scientific notation to ordinary numbers 20 Writing numbers in scientific notation 21 Cube roots 22 Scientific notation: Mixed questions 23 Percentages 24 Percentages: Working forwards 25 Calculating percentages 26 Percentage decrease 27 Percentage increase 28 Changing ratios to scale factors 29 Scale factor 30 Scale drawings of triangles 31 Ratio problems 32 Speed 33 Distance 34 Time 35 Direct proportion 36 Direct proportion equations 37 Variables in direct proportion 38 Applications involving direct proportion 39 Inverse proportion 40 Inverse proportion equations 41 Variables in inverse proportion 42 Application of inverse proportion 43 Cartesian coordinates 44 Straight line graphs 45 Inverse proportion graphs 46 Distance against time graphs 47 Changing the subject of a formula 48 Calculating a value using a formula 49 Changing the subject of a formula and calculating a value 50 Simple interest 51 Compound interest and growth 52 Exponents challenge: Compound growth 53 Scales on maps 54 Directions on maps 55 The Theorem of Pythagoras 56 Applying the Theorem of Pythagoras 57 The Theorem of Pythagoras: Worded questions 58 Geometry 59 Perimeter 60 Circumference 61 Areas of squares and rectangles 62 Area of triangles 63 Area of parallelograms 64 Area of trapeziums 65 Area of circles 66 Compound areas 67 Compound areas involving circles 68 Perimeter and area 69 Volume of cubes and cuboids 70 Volume of prisms 71 Bar graphs 72 Histograms 73 Pictograms 74 Pie charts 75 Broken line graphs 76 Mean, median, mode and range 77 Methods of assigning possibilities 78 The probability scale 79 Experimental probability 80 Answers Contents