Year 9
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Lesson details
Key learning points
- In this lesson, we will learn to use equivalence to combine algebraic relationships.
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.
Fill in the gaps: The "n" in the nth term represents the ____.
Coefficient
Difference
nth term rule
Q2.
Which sequence is formed as a result of adding -3n + 11 and 2n + 1 together?
11, 12, 13, 14, ...
13, 7, 1, 0, ...
5, 0, -5, -10, ...
Q3.
Which sequence is formed as a result of subtracting 2n + 11 from -3n + 11?
11, 10, 9, 8, ...
11, 12, 13, 14, ...
13, 7, 1, 0, ...
Q4.
Which sequence is formed as a result of adding "4, 9, 14, 19, ..." and "12, 8, 4, 0, ..." together?
-n - 17
-n + 15
n + 17
Q5.
Which sequence is formed as a result of subtracting "4, 9, 14, 19, ..." from "12, 8, 4, 0, ..."?
-9n - 17
9n - 17
9n + 17
5 Questions
Q1.
Look at the picture below and then fill in the gap: If the same expression is __________ to two equal quantities, then the two resulting expressions will be equal.
divided
multiplied
subtracted
Q2.
Look at the picture below and then fill in the gap: If the same expression is ___________ from two equal quantities, then the two resulting expressions will be equal.
added
divided
multiplied
Q3.
Look at the picture below and then fill in the gap: If two equal expressions are both _____________ by the same quantity, then the two resulting expressions will be equal.
added
divided
subtracted
Q4.
Look at the picture below and then fill in the gap: If two equal expressions are both __________ by the same quantity, then the two resulting expressions will be equal.
added
multiplied
subtracted
Q5.
If 𝑥 + 𝑦 = 100, then what is the value of 2𝑥 + 2𝑦 - 20?
160
200
220