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Directed Numbers

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How to add and subtract directed numbers?
Rule 1: If the signs are the same then add the numbers and keep the original sign.
Rule 2: If the signs are different then subtract: Big number minus small number. Keep the sign of the big number.

How to multiply and divide directed numbers?
Rule 1: The answer is positive when all the numbers are positive or when there is an even number of negative signs in the problem.
Rule 2: The answer is negative when there is an odd number of negative signs in the problem.

The following diagram gives the rules for the addition, subtraction, multiplication and division of directed numbers. Scroll down the page for more examples and solutions on the operations for directed numbers.

Directed Numbers

Directed Numbers Adding and Subtracting



Directed Numbers Multiplying and Dividing
Rules for adding, subtracting, multiplying and dividing positive and negative numbers GCSE Maths - Negative Numbers (Adding, Subtracting,Multiplying, Dividing)

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.
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