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Use odd and even properties to explain sums, differences and products.
Free examples and worked answers. No account needed.
Practise the method.
Use odd and even properties to explain sums, differences and products.
Use odd and even properties to explain sums, differences and products.
Example 1
Without finding the full result, is 59+25 odd or even?
Show worked answer
Answer: Even
- 59 is odd and 25 is odd.
- Two numbers with the same parity have an even sum or difference.
Example 2
Without finding the full result, is 76×26 odd or even?
Show worked answer
Answer: Even
- 76 is even and 26 is even.
- A product with an even factor can be split into pairs.
Example 3
Without finding the full result, is 17+50 odd or even?
Show worked answer
Answer: Odd
- 17 is odd and 50 is even.
- One odd and one even number have an odd sum or difference.
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