All model answers are purely the work MathsGenie and this work has neither been seen nor verified by OCR.
Question 1: Indices, Adding Numbers in Standard Form
Question 2: Estimation
Question 3: Probability
Question 4: Compound Measures: Density
Question 5: Multiplying and Dividing Decimals
Question 6: Multiplying and Dividing Fractions
Question 7: Reverse Percentages
Question 8: Time Series, Writing and Simplifying Ratio
Question 9: Changing the Subject of a Formula, Rearranging Formulae
Question 10: Transformations, Rotation, Translation, Negative Enlargement
Question 11: Repeated Percentage Change
Question 12: Circles: Sector Area and Arc Length
Question 13: Exact Trig Ratios, Trigonometry (SOHCAHTOA)
Question 14: Inequalities on Graphs
Question 15: Cumulative Frequency
Question 16: Geometric Sequences
Question 17: Similar Shapes, Length, Area and Volume, Writing and Simplifying Ratio
Question 18: Completing the Square, Solving Quadratics, Quadratic Graphs
Question 19: Circle Theorems
Question 19: Expanding, Simplifying, Fractorising, Algebraic Proof