Unlock harder levels by getting an average of 80% or higher.

Earn up to 5 stars for each level
The more questions you answer correctly, the more stars you'll unlock!

Each game has 10 questions.
Green box means correct.
Yellow box means incorrect.

Unlock harder levels by getting an average of 80% or higher.

Earn up to 5 stars for each level
The more questions you answer correctly, the more stars you'll unlock!

Each game has 10 questions.
Green box means correct.
Yellow box means incorrect.

More Ways To Use Math Games
Game Quickplay
Video Help

Need some help or instruction on how to do this skill?

Offline Worksheets

Want a paper copy? Print a generated PDF for this skill.

Top Mathematicians Leaderboards

See how you scored compared to other students from around the world.

Start a MathJam

Learn Math Together.

Math Games for Teachers

Grade 4 - Number

Standard 4.N.1 - Convert numbers in expanded form into their base ten equivalent.

Included Skills:

Represent and describe whole numbers to 10 000, pictorially and symbolically.
Read a given four-digit numeral without using the word and; e.g., 5321 is five thousand three hundred twenty-one, NOT five thousand three hundred AND twenty-one.
Write a given numeral, using proper spacing without commas; e.g., 4567 or 4 567, 10 000.
Write a given numeral 0–10 000 in words.
Represent a given numeral, using a place value chart or diagrams.
Express a given numeral in expanded notation; e.g., 321 = 300 + 20 + 1.
Write the numeral represented by a given expanded notation.
Explain the meaning of each digit in a given 4-digit numeral, including numerals with all digits the same; e.g., for the numeral 2222, the first digit represents two thousands, the second digit two hundreds, the third digit two tens and the fourth digit two ones.

If you notice any problems, please let us know.