# Inequalities On A Number Line Worksheet

• Section 1 of the inequalities on a number line printable worksheet contains 20+ skills-based inequalities on a number line  questions, in 3 groups to support differentiation
• Section 2 contains 3 applied inequalities on a number line  questions with a mix of worded problems and deeper problem solving questions
• Section 3 contains 3 foundation and higher level GCSE inequalities on a number line exam questions
• Answers and a mark scheme for all inequalities on a number line  questions are provided
• Questions follow variation theory with plenty of opportunities for students to work independently at their own level
• All questions created by fully qualified expert secondary maths teachers
• Suitable for GCSE maths revision for AQA, OCR and Edexcel exam boards

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### Inequalities on a number line at a glance

Inequalities demonstrate relationships between two expressions that are not equal to each other. There are four types of inequality symbols: greater than >, less than <, greater than or equal to ≥ and less than or equal to ≤. For example, x>4 means x is greater than 4 , so x could be 5, 6, 7, … etc.

Inequalities can be represented on a number line. This gives us a visual representation of the possible values a variable can take. When showing inequalities on a number line, we use two different types of circle. We use an open circle if the inequality does not include an ‘equals to’ and a closed circle if it does. We then use an arrow from the circle or a line between two circles to indicate the possible values the variable can take.

Solving algebraic inequalities such as linear inequalities and quadratic inequalities is very similar to solving algebraic equations, but instead of using an equals sign we use an inequality symbol. As with linear equations, we can have one step inequalities, two step inequalities and unknowns on each side of the inequality. The solution to an inequality represents a range of values rather than one number and the solution set can be represented on a number line.

Given an inequality, we can also write down the possible values a variable can take. We are usually interested in the relevant integer values (whole numbers) it can take. For example, if 3≤x<8 then the possible integer values of x are 3, 4, 5, 6, and 7.

Looking forward, students can progress with more inequalities worksheets to additional algebra worksheets, for example a solving equations worksheet or simultaneous equations worksheet.

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