MA01-03 Maths Watch
Adding, subtracting, multiplying and dividing positive and negative integers
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In this lesson
In this video you'll learn about negative numbers for GCSE Maths, with worked examples and the mistakes examiners report. By the end you'll be able to add, subtract, multiply and divide positive and negative whole numbers using a formal written method, including in practical contexts like temperature.
What it covers
- 0:57 Negative numbers: there are two lanes in this topic
- 3:25 Real questions rarely hand you a tidy sum
- 5:24 The other lane does not walk anywhere
- 8:20 Two things worth knowing about how this behaves on a paper
- 9:34 Two to try now, one from each lane
- 11:42 What's next
Key words
For: AQA GCSE 8300, Edexcel GCSE 1MA1, Edexcel IGCSE 4MA1, Eduqas GCSE C300, Cambridge IGCSE 0580, OCR GCSE J560
On the specification
| Board | Spec | Statement |
|---|---|---|
| AQA GCSE 8300 | N2 | Apply the four operations, including formal written methods, to integers, decimals and simple fractions (proper and improper), and mixed numbers – all both positive and negative |
| Edexcel GCSE 1MA1 | N2 | Apply the four operations, including formal written methods, to integers, decimals and simple fractions (proper and improper), and mixed numbers – all both positive and negative; understand and use place value (e.g. when working with very large or very small numbers, and when calculating with decimals) |
| Edexcel IGCSE 4MA1 | F1.1E | Use the four rules of addition, subtraction, multiplication and division |
| Edexcel IGCSE 4MA1 | F1.1C | Use directed numbers in practical situations |
| Eduqas GCSE C300 | FN2 | Apply the four operations, including formal written methods, to integers, decimals and simple fractions (proper and improper), and mixed numbers – all both positive and negative; understand and use place value (e.g. when working with very large or very small numbers, and when calculating with decimals) |
| Eduqas GCSE C300 | HN2 | Apply the four operations, including formal written methods, to integers, decimals and simple fractions (proper and improper), and mixed numbers – all both positive and negative; understand and use place value (e.g. when working with very large or very small numbers, and when calculating with decimals) |
| Cambridge IGCSE 0580 | C1.6 | Use the four operations for calculations with integers, fractions and decimals, including correct ordering of operations and use of brackets. |
| Cambridge IGCSE 0580 | E1.6 | Use the four operations for calculations with integers, fractions and decimals, including correct ordering of operations and use of brackets. |
| OCR GCSE J560 | 1.01a | Use non-calculator methods to calculate the sum, difference, product and quotient of positive and negative whole numbers. |
| OCR GCSE J560 | 2.01b | Add, subtract, multiply and divide simple fractions (proper and improper), including mixed numbers and negative fractions. |
| OCR GCSE J560 | 2.02b | Add, subtract and multiply decimals including negative decimals, without a calculator. |
| OCR GCSE J560 | 2.02c | Divide a decimal by a whole number, including negative decimals, without a calculator. |
For teachers
This GCSE Maths lesson teaches adding, subtracting, multiplying and dividing positive and negative integers. By the end, students should be able to add, subtract, multiply and divide positive and negative whole numbers using a formal written method, including in practical contexts like temperature. It works through two worked examples and the mistakes examiners report.