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

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Instructions

Read the directions for each section carefully. In Part 1, you will practice writing numbers in different ways. In Part 2, you will identify odd and even numbers. Try your best and have fun!

Part 1: Expanded Form Fun

Expanded form is a way to write a number by adding the value of each digit.
Example: 5,423 = 5,000 + 400 + 20 + 3

A. Write each number in expanded form.

  1. 7,831 = __________________________________________________

  2. 2,094 = __________________________________________________

  3. 9,620 = __________________________________________________

  4. 458 = ___________________________________________________

B. Write each number in standard form (the normal way).

  1. 6,000 + 300 + 70 + 5 = ____________________

  2. 1,000 + 900 + 8 = ____________________

  3. 8,000 + 40 + 2 = ____________________

  4. 5,000 + 500 + 50 + 5 = ____________________


Part 2: Odd or Even Adventure

Remember the rule!
Even numbers end in 0, 2, 4, 6, or 8.
Odd numbers end in 1, 3, 5, 7, or 9.

Look at the numbers in the list below. Write each number in the correct column in the table.

3,491     88     604     777     5,010     9,125     146     23

Even Numbers Odd Numbers

Part 3: Puzzle Time!

Read each question, write the answer, and then circle if the final number is ODD or EVEN.

1. Write this number in standard form: 2,000 + 800 + 7.
Answer: _____________     Is this number ODD or EVEN?


2. A mystery number has a 9 in the thousands place, a 4 in the hundreds place, a 1 in the tens place, and a 6 in the ones place.
What is the mystery number? _____________     Is this number ODD or EVEN?






Answer Key

Part 1: Expanded Form Fun

A. Write each number in expanded form.

  1. 7,831 = 7,000 + 800 + 30 + 1
  2. 2,094 = 2,000 + 90 + 4
  3. 9,620 = 9,000 + 600 + 20
  4. 458 = 400 + 50 + 8

B. Write each number in standard form.

  1. 6,000 + 300 + 70 + 5 = 6,375
  2. 1,000 + 900 + 8 = 1,908
  3. 8,000 + 40 + 2 = 8,042
  4. 5,000 + 500 + 50 + 5 = 5,555

Part 2: Odd or Even Adventure

Even Numbers Odd Numbers
88 3,491
604 777
5,010 9,125
146 23

Part 3: Puzzle Time!

1. Answer: 2,807     Is this number ODD or EVEN?

2. What is the mystery number? 9,416     Is this number ODD or EVEN?

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