4:54 Addition and Subtraction involving Negatives - Corbettmaths
Corbettmaths clearly explains adding and subtracting positive and negative numbers, the UK GCSE way.
Add and subtract directed numbers
Add and subtract directed numbers
7 hand-picked video lessons for this topic, each checked for relevance and clarity, graded by difficulty and labelled by depth. Press play to watch — nothing loads from YouTube until you do.
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9:01 Adding and Subtracting Negative Numbers
Maths Genie walks through adding and subtracting negatives with clear GCSE-focused worked examples.
11:43 Maths Help - 35. Addition & Subtraction of Directed Numbers
A thorough lesson on directed numbers, one of the most important skills to get right.
11:23 Math Antics - Adding & Subtracting Integers
Math Antics builds real understanding of adding and subtracting integers with a friendly, visual approach.
8:32 Adding and Subtracting Integers: A Step-By-Step Review | How to Add and Subtract Integers
A calm step-by-step review of adding and subtracting positive and negative numbers with plenty of examples.
4:07 Adding and subtracting negative numbers | Pre-Algebra | Khan Academy
Khan Academy works through several add and subtract negatives examples on a number line.
12:54 Adding and Subtracting Integers Using a Simple Method
The Organic Chemistry Tutor uses a simple number-line method with lots of practice questions.