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Lesson details

Key learning points

  1. In this lesson, we will look at writing calculations that include algebraic terms.

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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.
Answer the following: 18 x (5 - 3) + 7
Correct answer: 43
45
94
Q2.
Answer the following: 15 - 5 x 2
10
20
Correct answer: 5
Q3.
Answer the following: (18 - 7) x (2 + 5)
-33
27
Correct answer: 77
Q4.
Which of the following statements matches the calculation 15 x (5 - 3)?
Add 3 to 5 then multiply by 15
Multiply 15 by 5 then subtract 3
Correct answer: Subtract 3 from 5 then multiply by 15
Q5.
Which of the following statements matches the calculation 15 x (5 - 3) + 3?
Add 3 to 5, then multiply by 15 and then add 3
Multiply 15 by 5, then subtract 3 and then add 3
Correct answer: Subtract 3 from 5, then multiply by 15 and then add 3

5 Questions

Q1.
Which calculation matches the statement: I think of a number. I multiply my number by 2 then I subtract 5. (In the below calculations, m represents the originally thought number.)
m - 5 x 2
m x (2 - 5)
Correct answer: m x 2 - 5
Q2.
Which calculation matches the statement: I think of a number. I subtract 5 from my number then I multiply by 2. (In the below calculations, m represents the originally thought number.)
Correct answer: (m - 5) x 2
m - 5 x 2
m x (2 - 5)
Q3.
Which calculation matches the statement: I think of a number. I subtract 5 from my number then I multiply by 2. I then subtract subtract 6 and finally multiply by 3.
Correct answer: ((m - 5) x 2 - 6) x 3
(m - 5 x 2 - 6) x 3
m - 5 x 2 - 6 x 3
Q4.
Which of the following values of m gives an answer between 50-60 for the following calculation? 5 x m - 3
10
Correct answer: 12
13
9
Q5.
Which of the following values of m gives an answer between 30-35 for the following calculation? 5 x (m - 3)
Correct answer: 10
12
13
8