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Lesson details

Key learning points

  1. In this lesson, we will look at how we can use algebra to prove what happens to calculations with 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.
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.

5 Questions

Q1.
What is the result of Odd + Odd + Even?
Correct answer: Even
Odd
Q2.
What is the result of odd x even x odd?
Correct answer: Even
Odd
Q3.
What is the result of 334543 + 554567 + 66567 + 55456 ?
Even
Correct answer: Odd
Q4.
What is the result of (odd x even) + (odd + even)
Even
Correct answer: Odd
Q5.
What is the result of (odd + odd) + (even x odd) + (even + odd + odd)
Correct answer: Even
Odd

Lesson appears in

UnitMaths / Algebra and problem solving