Перейти к содержимому

Everyone Gets Rounding WRONG! Fix It Now | Checkpoint - IGCSE - O-Level 2027 🔥

Mr Muhamed Torkey

0:00 / 0:00

Everyone Gets Rounding WRONG! Fix It Now | Checkpoint - IGCSE - O-Level 2027 🔥

108 просмотров · 1 месяц назад
Mr Muhamed Torkey
603 подписчика
108 просмотров · 1 месяц назад
Welcome! In this video we explain Rounding in Maths step by step 🔢 Perfect for Year 8 Checkpoint, Year 9 Core, and Year 10 O-Level Edexcel students 👇 ✅ What is Rounding and why it matters ✅ Rounding to decimal places ✅ Rounding to significant figures ✅ Estimation & Rounding in exam questions ✅ Solved examples in real exam style Simplified and organized for all levels (Checkpoint – IGCSE – O-Level Edexcel) 2027, so you understand it right and score full marks 💯 Don't forget: 👍 Like the video 🔔 Subscribe & turn on notifications ✍️ Drop your questions in the comments ____________________________________________ 00:00 🎬 Intro: Rounding — the first topic in the course & why it matters 00:08 📌 What does "round" mean? Rounding = Approximating a number 00:16 💡 Example: the number 384.959 — how do we approximate it? 00:39 📌 Place value names — the foundation of rounding correctly 00:46 📌 Before the decimal point: from the left — Units / Ones 00:53 📌 Units = Ones = Whole Number (all the same meaning) 01:15 📌 Tens, then Hundreds, then Thousands 01:34 📌 After the decimal point — where students get confused most 01:42 📌 Tenth = 1 Decimal Place 01:51 📌 Hundredth = 2 Decimal Places 02:01 📌 "Over 10" = 0.1 and "Over 100" = 0.01 02:21 📌 Reading the digits after the decimal point (3 digits / 6 digits) 02:38 📌 Important note: zeros in 0.0037 — which ones matter 03:12 📌 The zeros that have no value at all in rounding 03:22 📌 Rule of the Dash: mark the digit you're rounding to 03:30 📌 Question types: "Round" vs "Round to" 03:39 📌 "Correct to the nearest…" — the same idea 03:57 📌 Ones = Whole Number = Units — all mean the same thing 04:21 💡 Example 1: round 3874 to the Ones — look at the next digit (5 or more → add 1) 04:41 💡 Answer: 3875 (and everything after becomes zero) 04:51 💡 Example 2: round to the Tens — next digit is 4 → keep it as it is 05:08 💡 Answer: 3870 05:29 💡 Example 3: round to the nearest Hundreds — next digit is 7 → add 1 05:44 💡 Answer: 3900 and everything after becomes zero 05:51 💡 Example 4: round to the Thousands — next digit is 8 → add 1 06:02 💡 Answer: 4000 06:16 💡 Example 5: round to 1 Decimal Place — 9 + 1 = 10 → carry over 06:26 💡 Answer: 3875.0 — and why you MUST write the zero 07:02 ⚠️ The zero rule: never drop it in this question type 07:11 💡 Quick review: round to the Thousands → 4000 07:44 📌 Harder questions (worth 2 marks) — these need the calculator 08:01 💡 Rule: solve each part separately first, then write the full answer 08:09 💡 Working out 2.6 − 9.8 ÷ 3.9 step by step on the calculator 08:47 ⚠️ Write every digit that appears — never shorten it 09:16 📌 Rounding to Significant Figures 09:25 📌 Key note: zero can never be a significant figure 09:33 💡 First significant figure → Answer: 0.0871 09:56 💡 More 2-mark calculator questions 10:12 💡 Intermediate value 3.4, then carry it into the next step → Answer: 1.9 10:39 💡 "Write all the digits" calculator questions 10:48 ⚠️ Never type the whole question into the calculator at once 10:56 💡 Work out 3.7 × 2.9 = 10.73 first 11:22 💡 Handling very large calculator numbers 11:48 💡 Next digit is 4 → keep as is: 3.4 11:58 💡 More 2-mark questions 12:06 💡 Solve the division part on its own 12:14 💡 Solving 24.1 ÷ (8.4 − 7.8) step by step 12:28 💡 Intermediate value 0.6 and continuing the calculation 12:36 💡 Answer 38.4 and the subtraction that follows 12:54 💡 Writing the full answer: 1.63 13:01 🏁 Outro: what to focus on and what to watch out for _______________________________________________________________________ rounding, rounding numbers, rounding maths, year 8 checkpoint maths, year 9 core maths, year 10 o-level maths, o-level edexcel maths, rounding checkpoint, rounding igcse, rounding o-level, checkpoint maths, edexcel maths, rounding decimals, rounding significant figures, maths year 8, maths year 9, maths year 10, cambridge checkpoint maths, rounding to decimal places, igcse maths, o-level maths edexcel, rounding explained, estimation and rounding, international maths, british curriculum maths _______________________________________________________________ #Rounding #Checkpoint_Maths #IGCSE_Maths #OLevel_Edexcel #Maths