KS2 Primary Maths Age 13-17 - Ratio, Proportion and Algebra: Formulas and Expressions - Explained

The video tutorial explains how to determine the amount of money Dev has left after giving some away. Dev starts with £10 and gives away an amount represented by 'A'. The tutorial guides viewers through the process of forming the expression '10 - A' to find the remaining money. It emphasizes understanding the problem, defining variables, and solving the expression. The tutorial concludes with a brief mention of the marks allocated for solving the problem.

Dev starts with £10 and gives away some money. Which expression best represents the money he has left?

• A - 10

• 10 + A

• 10 - A

• 10 / A

If Dev gives away £8, how much money does he have left?

• £10

• £18

• £8

• £2

What does the variable A represent in the context of this problem?

• The money Dev received

• The total money Dev has

• The money Dev wants to have

• The money Dev gave away

Which of the following is NOT a correct way to express the remaining money?

• 10 / A

• A - 10

• 10 - A

• 10 + A

How many marks was the question worth?

• Two marks

• One mark

• Four marks

• Three marks