Expanded Form, Odd and Even Numbers Worksheet for 9-Year-Olds

Instructions

Read the examples carefully and then try the questions in each part. Good luck!

Part 1: Expanded Form - Stretching Out Numbers!

What is Expanded Form?

Numbers are made up of different parts. Expanded form is when we take a number and stretch it out to show the value of each digit. We break it down into its Hundreds, Tens, and Ones.

Example:

Let's look at the number 258.

• The 2 is in the hundreds place, so its value is 200.
• The 5 is in the tens place, so its value is 50.
• The 8 is in the ones place, so its value is 8.

So, the expanded form of 258 is: 200 + 50 + 8

Your Turn!

Write the expanded form for each number.

1. 593 = ____________ + ____________ + ____________
2. 174 = ____________ + ____________ + ____________
3. 820 = ____________ + ____________ + ____________
4. 406 = ____________ + ____________ + ____________
5. 989 = ____________ + ____________ + ____________

Now, let's go backwards! Write the normal number (standard form) for each expanded form.

6. 300 + 40 + 5 = ____________
7. 700 + 10 + 2 = ____________
8. 600 + 0 + 9 = ____________
9. 200 + 80 + 0 = ____________
10. 100 + 60 + 7 = ____________

Part 2: Odd or Even?

What are Odd and Even Numbers?

A simple trick can help you tell if any number is odd or even. You only need to look at the very last digit (the digit in the ones place)!

• EVEN numbers end in one of these digits: 0, 2, 4, 6, 8.
• ODD numbers end in one of these digits: 1, 3, 5, 7, 9.

Example:

• The number 476 is EVEN because it ends in a 6.
• The number 891 is ODD because it ends in a 1.

Your Turn!

Look at each number below. Is it ODD or EVEN? Write your answer on the line.

1. 358 ____________________
2. 129 ____________________
3. 990 ____________________
4. 741 ____________________
5. 266 ____________________
6. 555 ____________________
7. 407 ____________________
8. 814 ____________________

Challenge Question!

Circle the house number that is EVEN.

143

250

377

Answer Key

Part 1: Expanded Form

1. 593 = 500 + 90 + 3
2. 174 = 100 + 70 + 4
3. 820 = 800 + 20 + 0
4. 406 = 400 + 0 + 6
5. 989 = 900 + 80 + 9
6. 300 + 40 + 5 = 345
7. 700 + 10 + 2 = 712
8. 600 + 0 + 9 = 609
9. 200 + 80 + 0 = 280
10. 100 + 60 + 7 = 167

Part 2: Odd or Even?

1. 358: EVEN
2. 129: ODD
3. 990: EVEN
4. 741: ODD
5. 266: EVEN
6. 555: ODD
7. 407: ODD
8. 814: EVEN

Challenge Question Answer:

The even house number is 250 (because it ends in a 0).