Lesson details

Key learning points

  1. In this lesson, we will learn to collect together terms that are alike and manipulate linear 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

6 Questions

Q1.
Fill in the gap. We can collect together like terms of variables and constants in order to ______ algebraic expressions.
Create
Produce
Correct answer: Simplify
Sum
Q2.
Fill in the gap: 14 × 3 = 10 × 3 + ____ × 3
-4
1.2
13
Correct answer: 4
Q3.
Fill in the gaps: 5a + 9a = ___ × a = ____
13, 13a
Correct answer: 14, 14a
15, 15a
45, 45a
Q4.
Fill in the gaps: 18x + 20x = 30x + ____
10x
18x
38x
Correct answer: 8x
Q5.
Simplify the expression 10a -4b + 2a + b
Correct answer: 12a - 3b
12a - 5b
12a + 3b
8a + 5b
Q6.
Simplify the expression -20x + 3 - 8y + x -y
-19x + 3 - 7y
Correct answer: -19x + 3 - 9y
-21x + 3 - 7y
-25xy

Lesson appears in

UnitMaths / Expressions, equations and inequalities