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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

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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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