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Maths GCSE Exam Style Questions: Mixed Topics
This video covers a variety of GCSE exam style practice questions on a range of topics. Pause the video while you work them out.
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Roman Numerals Explained
In this video, you’ll learn all about the fascinating world of Roman numerals. With clear and concise explanations and examples, you’ll gain a deep understanding of how to read and write Roman numerals. Practice questions and answers are at the end of the video.
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Estimation In Maths
This video covers the topic of estimation in maths; it explains what estimation is and what it is used for. Practice questions and answers are at the end of the video.
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Number Patterns And Answers
This video provides a range of number patterns (sequences) and answers. Explanations of how these are solved will be given in next weeks video! Comment below with your own solutions!
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GCSE Maths Practice Questions: Mixed Topics Part 2
This video provides more GCSE Maths exam practice questions on a variety of topics.
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Maths Puzzles With Answers
This video contains four maths puzzles with answers. These maths puzzles are great for brain training and for lesson starters.
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The Handshake Puzzle
The Handshake Puzzle: a classic mathematical puzzle coming from the topic of combinatorics and will develop your problem-solving skills. This video provides a demonstration of how to solve the puzzle and asks you to generalise further by producing a formula.
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Triangular Numbers Explained
This video explains what triangular numbers are and the patterns associated with them. Two puzzles are at the end of the video.
Skip to:
00:00 Introduction
00:22 What exactly is a triangular number?
00:42 What patterns do you notice about the sequence?
01:43 How to find a triangular number
02:20 Practice questions/ puzzles
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How To Find The Area Of A Parallelogram
This video will explain how to find the area of a parallelogram, what a parallelogram is and provides a visual demonstration of why the formula for the area of a parallelogram works. Practice questions are at the end of the video.
Skip to:
00:00 Intro
00:19 What is a parallelogram
00:53 How to find the area of a parallelogram
01:18 Visual demonstration for formula
01:41 Area of a parallelogram example
02:10 Practice questions
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How To Find The Nth Triangular Number
This video explains how to find the nth triangular number. For a refresher on triangular numbers see our video: https://youtu.be/3G0VozmToZ4
Practice questions are at the end of the video.
Skip to:
00:00 Introduction
00:25 How to find the nth triangular number
01:37 Formula for finding the nth triangular number
02:38 Practice questions
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How To Find The Area Of A Trapezium
This video will explain how to find the area of a trapezium and provides a visual demonstration of the formula, using the area of a parallelogram.
Skip to:
00:00 Introduction
00:17 What is a trapezium
00:43 Trapezium measurements
01:03 Visual demonstration of formula
01:56 Formula for area of a trapezium
02:06 Example
02:36 Practice questions
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Upper And Lower Bounds
This video explains how to calculate upper and lower bounds when a number has been rounded. Practice questions and answers at the end of the video.
Skip to:
00:00 Introduction
00:19 What are upper and lower bounds
01:02 Degree of accuracy
01:40 Examples
02:35 Practice questions
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Video: What Are The Multiples And Factors Of A Number
This video explains what the multiples and factors of a number are. Practice questions are at the end of the video.
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Video: Types Of Triangles And Their Properties
This video will explain the four types of triangles and their properties: right-angled, equilateral, isosceles and scalene triangles. Practice questions are at the end of the video.
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Video: Semi-Regular Tessellations
This short video explains how to identify semi-regular tessellations: tessellations made up of two or more regular polygons.
Practice questions are at the end of the video.
For an explanation of regular tessellations, see our video:
https://youtu.be/PiOa_vWKJA4
Skip to:
00:00 What are semi-regular tessellations
00:34 How to identify the pattern at the vertex
01:21 Practice questions
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Video: How to find prime factors
This video explains how to find the prime factors of a number using the factor tree method. Practice questions are at the end of the video.
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Video:How to find the volume of a cuboid
This video will show you how to find the volume of a cuboid. Practice questions and answers are at the end of the video.
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Video: Drawing on isometric paper
In this video we show you how to draw 3D shapes on isometric paper. There are practice questions at the end of the video. You can download some isometric paper from here: https://nrich.maths.org/isometricpaper
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Video: How to find the lowest common multiple
We explain how to find the lowest common multiple of two or more numbers, using two methods: listing the multiples and using prime factorisation. Practice questions and answers are at the end of the video.
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Video: How To Find The Highest (Greatest) Common Factor
This video explains two methods to find the highest common factor (also known as the greatest common factor) of two or more numbers: by listing the factors or by prime factorisation.
For a refresher on multiples and factors: https://youtu.be/4EkhaETrcnY
For a refresher on prime factors: https://youtu.be/1zagn5okZgM