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An Odd Number is a number that can’t be split evenly into two equal parts. When you try to divide it by 2, there’s always one left over.
Examples of odd numbers:
1, 3, 5, 7, 9, 11, 13...
You can spot an odd number by looking at the last digit. If it ends in 1, 3, 5, 7, or 9, it’s odd!
If you have 5 cookies and want to share them with a friend, each of you gets 2 — but 1 cookie is left!
If 7 students want to pair up, one person won’t have a partner.
Many locker numbers, house addresses, and jerseys use odd numbers.
Odd numbers are just like their even number buddies, but they don’t like to share evenly!
If you add two odd numbers, the answer is always even!
Example: 3 + 5 = 8 ✅
But if you add an odd and even number, you always get odd again!
Example: 4 + 7 = 11 ✅
Odd numbers are just like their even number buddies, but they don’t like to share evenly!
“Even or Odd? Shoe Toss!”
1️⃣ Write numbers 1–20 on small papers and toss them into a basket.
2️⃣ Pick a number, say it out loud, and decide: Even or Odd?
3️⃣ If it’s even, clap your hands. If it’s odd, jump in place!
You can make it silly and active — a great way to remember which is which!
Odd numbers are everywhere. They make counting fun, help with patterns, and even show up in nature — like how some petals or legs on insects come in odd numbers. Once you learn to spot them, you’ll see they’re just as awesome as even numbers!
Put your math brain to the test with our Missing Numbers Challenge! 🎯