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Odd and Even Numbers

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Odd and Even Numbers worksheet preview

Odd and Even Numbers

Numbers and counting objects illustration

📚 Part 1: Identifying Odd and Even Numbers

1. Circle whether each number is odd or even:

a) 12 is:

Odd
Even

b) 17 is:

Odd
Even

c) 26 is:

Odd
Even

d) 33 is:

Odd
Even

2. Fill in the missing numbers to complete these patterns:

a) Even numbers: 2, 4, 6, ____, 10, ____, 14

b) Odd numbers: 1, 3, ____, 7, ____, 11, ____

3. Which group do these numbers belong to? Tick all the odd numbers:

8

15

22

29

34

🧮 Part 2: Adding and Subtracting Odd and Even Numbers

4. Solve these problems and circle whether the answer is odd or even:

a) 6 + 8 = ____ This answer is:

Odd
Even

b) 5 + 7 = ____ This answer is:

Odd
Even

c) 9 + 4 = ____ This answer is:

Odd
Even

5. Complete this pattern investigation:

When you add two even numbers, the answer is always ____________.

When you add two odd numbers, the answer is always ____________.

When you add one odd and one even number, the answer is always ____________.

6. Test your pattern with these calculations:

🔍 Part 3: Creating Your Own Algorithm

7. Write step-by-step instructions to help someone decide if a number is odd or even:

Step 1: ________________________________________________

Step 2: ________________________________________________

Step 3: ________________________________________________

8. Use your algorithm to check these numbers. Show your working:

Is 24 odd or even? ________________________________

Is 37 odd or even? ________________________________

9. Think about everyday life. Describe one situation where knowing if a number is odd or even would be helpful:

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