Year 8
Inequalities and substitution (Part 1)
Year 8
Inequalities and substitution (Part 1)
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Lesson details
Key learning points
- In this lesson, we will substitute different values into an algebraic inequality to see if it is true or false.
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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3 Questions
Q1.
Which of the following statements is TRUE? Select one.
18 ÷ 3 = 15 ÷ 5
5 + 4 < 6 + 4
6 x 5 > 7 x 3
Q2.
Which inequality fits in the gap? 5 + 8 ____ 7 + 8?
=
>
≥
Q3.
Which value of x does NOT satisfy the inequality x ≤ 6 (where x is a number)?
x = 4
x = 5
x = 6
3 Questions
Q1.
Which of the following values of x satisfy the inequality x + 2 < 11 ? Select ONE
x = 10
x = 11
x = 9
Q2.
Which of these statements are true if x = 2? Select all that apply.
11 < 13 - x
2x ≤ 3
Q3.
Which of the following inequalities is satisfied if x = 3 and y = 4?
3x + 4y < 25
3x + 4y > 25
4x + 3y > 25