Even and Odd Numbers

Ages 69

Difficulty adapts to you

Even and Odd Numbers

Even numbers can be split into two equal groups with nothing left over. Odd numbers always leave one extra when you try to split them.

Your goals

  • You can tell the difference between even and odd numbers.
  • You can use even, odd correctly.
  • You can look at the ones digit or make pairs.

Words to know

even:
A whole number that can be divided by 2 with no remainder.
odd:
A whole number that leaves a remainder of 1 when divided by 2.

Examples

  • 1Even: 2, 4, 6, 8, 10 — they all end in 0, 2, 4, 6, or 8.
  • 2Odd: 1, 3, 5, 7, 9 — they all end in 1, 3, 5, 7, or 9.

Check these

  • Do not decide from the size of the number instead of its ones digit.
  • Keep every number, symbol, label, and unit in its correct place.
  • Show enough working to check how you reached your answer.

Helpful habits

  • Read the whole question before choosing what to do.
  • Show one clear step at a time and check each step.
  • If you are stuck, draw a model, try smaller numbers, or revisit the example.

Now try your own

Create your own even and odd numbers example, solve it, and explain how you checked it.

Byte

Byte

Helpful Hints

Hint: Break big problems into smaller steps!