Daily Maths Revision – Week 6 Walkthrough

If you’re struggling with this week’s questions, this walkthrough should help you get the skills you need. If it’s a formula you need, here are the two that are relevant this week. You aren’t given these so you will need to remember them. Cylinders   volume =        surface area =         This week, we’re exploring: Probability Tree Diagrams Cylinders Lowest Common Multiple with Prime Factors Exchange Rates Expanding Double Brackets Question 1: Probability Tree Diagrams Probability trees are a brilliant way to organise different outcomes and their probabilities in a clear and easy-to-use way. Let’s say the probability of Hugo winning a … Continue reading Daily Maths Revision – Week 6 Walkthrough

Daily Maths Revision – Week 5 Walkthrough

If you’re struggling with this week’s questions, this walkthrough should help you get the skills you need. If it’s a formula you need, here are the two that are relevant this week. You aren’t given these so you will need to remember them. Trigonometry Ratios                      Circumference of a circle This week, we’re exploring: Trigonometry Reverse Percentages Circumference of a Circle Proportion Mutually Exclusive and Exhaustive Events Question 1: Trigonometry Trigonometry is sometimes referred to as SOHCAHTOA – but SOHCAHTOA is a mnemonic that helps you remember one type of trigonometry, involving right-angled triangles. It gives the 3 trig ratios, sin, … Continue reading Daily Maths Revision – Week 5 Walkthrough

Daily Maths Revision – Week 4 Walkthrough

If you’re struggling with this week’s questions, this walkthrough should help you get the skills you need. This week, we’re exploring: Multiplying Fractions Laws of Indices The nth Term of Linear Sequences Averages from a Table The Area of Composite Shapes Question 1: Multiplying Fractions When multiplying fractions, we simply multiply the numerators (the top numbers) and then multiply the denominators (the bottom numbers). Then, if we need to, we simplify our answer. Let’s calculate: We need to see if we can simplify our answer by checking for any common factors of 15 and 42. In this case, they are … Continue reading Daily Maths Revision – Week 4 Walkthrough

Daily Maths Revision – Week 3 Walkthrough

If you’re struggling with this week’s questions, this walkthrough should help you get the skills you need. If it’s a formula you need, here are the two that are relevant this week. You aren’t given these so you will need to remember them. It can be helpful to write the things you need to remember and stick them somewhere visible like in the bathroom! Pythagoras’ Theorem Volume of a Prism volume = area of the cross-section × length This week, we’re exploring: Pythagoras’ Theorem Percentage Increase and Decrease The Volume of a Prism Best Buys Factorising into Single Brackets Question … Continue reading Daily Maths Revision – Week 3 Walkthrough