Lesson: Even and Odd Numbers (Grade 1)

Even = everyone has a partner. Odd = one is left alone.

Make pairs

Think of socks. Socks come in pairs. Let's put dots in pairs.

• 6 dots make 3 pairs. Nobody is alone. 6 is even.
• 7 dots make 3 pairs, and 1 is alone. 7 is odd.

Even, odd, even, odd…

On the number line, even and odd take turns.

The last-digit trick

For big numbers, just look at the last digit.

• 34 ends in 4 → even
• 57 ends in 7 → odd
• 100 ends in 0 → even

Practice

Try the Even or Odd worksheets. For more, use Odd & Even Numbers from Grade 2.