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Lesson details
Key learning points
- 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?
Always Odd
Could be either
Q2.
Is the value of 4n - 2 always odd, always even, or either?
Always Odd
Could be either
Q3.
Is the value of 3n + 1 always odd, always even, or either?
Always Even
Always Odd
Q4.
What operation could I perform to 4n + 1 to make it always even?
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
Nothing - it already is even.
5 Questions
Q1.
What is the result of Odd + Odd + Even?
Odd
Q2.
What is the result of odd x even x odd?
Odd
Q3.
What is the result of 334543 + 554567 + 66567 + 55456 ?
Even
Q4.
What is the result of (odd x even) + (odd + even)
Even
Q5.
What is the result of (odd + odd) + (even x odd) + (even + odd + odd)
Odd