Percentages | GCSE Maths Grade 3 Walkthrough

Percentages without a calculator - find 10% and 1% first, then build any percentage you need from them. All 20 questions on the GCSE Grade 3 Percentages worksheet, worked through step by step. 📄 Download the free worksheet (exam style, answers included): https://effectiveeducation.online/wor... ✏️ Then practise with GCSE-style questions that mark your answers instantly: https://effectiveeducation.online In this video: • The easy ones - 50% is a half, 25% is a quarter, 10% is a tenth, 1% is a hundredth • Building up from 10% and 1% - 30%, 15%, 21% and 125% • Comparing two percentages • Increasing and decreasing by a percentage • Writing one number as a percentage of another - two methods • Working backwards - 65% of a number is 130 • VAT, simple interest and "the rest" questions Chapters: 0:00 Q1 10% of 70 pounds 0:15 Q2 50% of 840 grams 0:29 Q3 1% of 500 litres 0:44 Q4 25% of 48 0:58 Q5 20% of 45 1:18 Q6 30% of 120 1:38 Q7 15% of 80 1:56 Q8 5% of 260 2:09 Q9 21% of 240 pounds 2:38 Q10 125% of 80 2:58 Q11 Which is greater - 35% of 160 or 38% of 150 3:58 Q12 Decrease 90 by 20% 4:24 Q13 Increase 24,000 pounds by 5% 4:46 Q14 18 out of 40 as a percentage 5:36 Q15 65% of a number is 130 - two methods 6:19 Q16 VAT on a jacket 6:53 Q17 Pupils who come to school by car 7:35 Q18 Who got the higher mark? 8:13 Q19 Simple interest on 750 pounds for 4 years 8:48 Q20 Rate of simple interest #GCSEMaths #Percentages #MathsRevision