GCSE Secondary Maths Age 13-17 - Algebra: Inequalities - Explained

The video tutorial explains the concept of integers, including positive, negative, and zero values. It demonstrates how to list possible integer values for a variable Y that must be greater than a certain number. The tutorial then covers solving inequalities, specifically those involving brackets, and highlights common mistakes students make, such as not writing the full answer. The importance of correctly solving inequalities to gain full marks in exams is emphasized.

Which of the following is NOT considered an integer?

• 0

• -3

• 2.5

• 100

If Y must be greater than -5, which of the following is a possible value for Y?

• -6

• -7

• -5

• -4

What is the first step in solving the inequality 6(X - 2) > 15?

• Add 2 to both sides

• Expand the brackets

• Subtract 15 from both sides

• Divide by 6

After expanding the brackets in the inequality 6(X - 2) > 15, what should be the next step?

• Subtract 12 from both sides

• Add 12 to both sides

• Divide both sides by 6

• Multiply both sides by 6

Why is it important to write the complete answer when solving inequalities?

• To avoid losing marks

• To make the answer look longer

• To show off your handwriting

• To confuse the examiner