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Lesson details

Key learning points

  1. In this lesson, we will investigate the algebraic representations of odd and even numbers.

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.
What is the final answer if I start with 4?
An image in a quiz
16
Correct answer: 25
36
49
Q2.
What is the final answer if I start with 6?
An image in a quiz
Correct answer: 25
36
49
64
Q3.
Will the answers to the puzzle above always be odd, even, or does it depend on the starting number?
Always even
Always odd
Correct answer: Depends on the starting number
Q4.
Start with 6. What is the final answer?
An image in a quiz
12
Correct answer: 5
7
8
Q5.
Will the answers to the puzzle above always be odd, even, or does it depend on the starting number?
Always even
Correct answer: Always odd
Depends on the starting number

5 Questions

Q1.
Is the value of 2n always odd, always even, or either?
Correct answer: Always Even
Always Odd
Could be either
Q2.
Is the value of 4n - 2 always odd, always even, or either?
Correct answer: Always Even
Always Odd
Could be either
Q3.
Is the value of 3n + 1 always odd, always even, or either?
Always Even
Always Odd
Correct answer: Could be either
Q4.
What operation could I perform to 4n + 1 to make it always even?
Correct answer: Add 1
Add 5
Divide it by 2
Multiply it by 3
Nothing - it already is even.
Q5.
What operation could I perform to n + 4 to make it always even?
Add 1
Divide it by 2
Multiply it by 3
Correct answer: Multiply it by 4
Nothing - it already is even.

Lesson appears in

UnitMaths / Algebra and problem solving