Math Revision Worksheet for 9-Year-Olds: Place Value, Number Patterns & More

Instructions

Hello, Math Explorer! Let's go on an adventure to review what you've learned. Read each section carefully and do your best to solve all the puzzles. Good luck!

Part 1: Place Value Power!

Remember, a number is built with hundreds, tens, and ones.

Example: 7 hundreds, 6 tens, and 4 ones makes the number 764.

A. Write the number made by the blocks.

1. 4 hundreds + 8 tens + 2 ones = ______________
2. 9 hundreds + 1 ten + 5 ones = ______________
3. 6 hundreds + 0 tens + 3 ones = ______________

B. What is the value of the underlined digit?

Example: In the number 251, the value of the digit 5 is 50 (or 5 tens).

1. In 846, the value of the digit 4 is ______________.
2. In 397, the value of the digit 3 is ______________.
3. In 529, the value of the digit 9 is ______________.

Part 2: Expanding Numbers!

Let's stretch those numbers out! This is called expanded form.

Example: 528 = 500 + 20 + 8

A. Write these numbers in expanded form.

1. 735 = ______ + ______ + ______
2. 194 = ______ + ______ + ______
3. 806 = ______ + ______ + ______

B. What number do these expansions make?

1. 400 + 50 + 1 = ______________
2. 900 + 70 + 0 = ______________

Part 3: Number Pattern Puzzles

Can you find the rule and fill in the missing numbers?

1. 124, 126, 128, ______, 132, ______
2. 250, 300, 350, ______, 450, ______
3. 980, 970, 960, ______, 940, ______
4. 444, 544, 644, ______, 844, ______

Part 4: Smallest to Biggest Race

Arrange each set of numbers in order from the smallest to the biggest.

1. Numbers: 621, 126, 216, 612

   Order: ______________, ______________, ______________, ______________

2. Numbers: 909, 899, 990, 919

   Order: ______________, ______________, ______________, ______________

Part 5: The Odd & Even Squad

An easy way to tell if a number is odd or even is to look at the last digit!

• Even numbers end in 0, 2, 4, 6, or 8. (Example: 42, 156)
• Odd numbers end in 1, 3, 5, 7, or 9. (Example: 83, 401)

Look at the numbers in the box below. Circle all the EVEN numbers.

Now, list the ODD numbers from the box above:

____________________________________________________________________

Answer Key

Part 1: Place Value Power!

A.

1. 482
2. 915
3. 603

B.

1. 40 (or 4 tens)
2. 300 (or 3 hundreds)
3. 9 (or 9 ones)

Part 2: Expanding Numbers!

A.

1. 700 + 30 + 5
2. 100 + 90 + 4
3. 800 + 0 + 6 (or just 800 + 6)

B.

1. 451
2. 970

Part 3: Number Pattern Puzzles

1. 130, 134
2. 400, 500
3. 950, 930
4. 744, 944

Part 4: Smallest to Biggest Race

1. 126, 216, 612, 621
2. 899, 909, 919, 990

Part 5: The Odd & Even Squad

The EVEN numbers circled should be: 148, 760, 244, 92.

The ODD numbers listed should be: 35, 99, 81, 507.