More Lessons for GCSE Maths

Math Worksheets

Videos, games, activities and worksheets that are suitable for GCSE Maths.

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.

Rule 1: The answer is positive when all the numbers are positive or when there is an even number of negarive signs in the problem.

Rule 2: The answer is negative when there is an odd number of negative signs in the problem.

Directed Numbers Adding and Subtracting

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

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