Lesson details

Key learning points

  1. In this lesson, we will be introduced to algebraic notation and learn how to evaluate and substitute into expressions.

Licence

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5 Questions

Q1.
Which of the following best describes an expression?
Correct answer: A mathematical phrase.
Algebra.
Something which has letters and numbers in.
Something which has letters in.
Q2.
Which of the following is NOT an expression?
2 - 3
4x + 2
6 x 10y
Correct answer: 7 + 2x = 5
Q3.
How should we write 5 x a - 2?
5 - 2a
5 x a - 2
5(a - 2)
Correct answer: 5a - 2
Q4.
Which value of x means that 3x < 2x + 1
Correct answer: -2
1
2
5
Q5.
Which value of y means that -3y - 1 > 2y
Correct answer: -5
0
0.5
7

Lesson appears in

UnitMaths / Expressions, equations and inequalities