Even & Odd Numbers

Practise telling even numbers from odd ones — a quick yes/no skill that builds toward multiplication and division.

Grades 1–3 · 2.OA⚡ Number sense
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What makes a number even or odd

An even number can be split into two equal groups with nothing left over; an odd number always has one left over. The shortcut is the last digit — you never need to look at the rest of the number.

  1. Look only at the last digit.
  2. If it’s 0, 2, 4, 6 or 8, the number is even.
  3. If it’s 1, 3, 5, 7 or 9, the number is odd.

Worked examples

An even numberIs 34 even? The last digit is 4, which is even, so yes — 34 is even.
An odd numberIs 287 odd? The last digit is 7, which is odd, so yes — 287 is odd.
AD AREA (parent reading zone only — never shown during practice)

Tips & common mistakes

The whole trick is the last digit — it doesn’t matter how big the number is. 1,000,006 is even because it ends in 6. Tap Yes or No.

  • Looking at the first digit instead of the last.
  • Forgetting 0 is even.
  • Trying to divide the whole number when the last digit is all you need.

Frequently asked questions

What is an even number?

A whole number that splits into two equal groups with none left over. Even numbers end in 0, 2, 4, 6 or 8.

What is an odd number?

A whole number that leaves one over when split in two. Odd numbers end in 1, 3, 5, 7 or 9.

How do I tell quickly?

Look only at the last digit — it decides even or odd no matter how large the number is.

Is zero even or odd?

Zero is even — it splits into two equal groups (nothing and nothing) with none left over.

What grade is this?

Even and odd numbers are a grade 1–2 skill that supports later work on multiples and division.

Keep practising

← Number senseFactors & multiplesDivisibility rules2nd grade math

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