Inequalities

Solving for a range of answers

An interactive lesson with 6 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• Inequalities are solved like equations; the solution is a range.
• Multiplying or dividing by a negative number flips the inequality.
• On a number line: open circle for < and >, filled for ≤ and ≥.

Steps

1. More or less
2. Show the solution set
3. The twist
4. Largest whole number
5. Flip it
6. A double inequality