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Decimal Number Line Game | 4 Activities | Free Printable


It is always exciting when we start a new math unit! There is something invigorating about knowing we have completed a chapter, and that it’s time to learn something new that is a decimal number line game.

This new unit introduces my oldest to two new concepts…..large numbers up to a million and decimals. We have had a blast reading about, exploring, and playing games with large numbers, and now it is about time to move on to decimals.

Like any new concept, it is important to help children model it. We will be starting off with a game using a 100 grid, and then moving on to this game to help him model decimals on a number line.

Both games are great for teaching modeling decimals and ordering decimals. And they don’t require a lot of prep work.

Prep Work for Number Line Decimal Game

  1. First, print off two game boards and one set of decimals on cardstock paper.
  2. Laminate the game boards and then glue them into a file folder or provide a divider for the two players.
  3. Cut out the decimals.
  4. Provide dry-erase markers.

Instructions to Play Decimal Number Line Game

To play this decimal number line game each player has to follow some rules. They are as follows-

  • Each player draws a card and writes that number on the first number line.
  • Players one guess a decimal number between the numbers 0 and 1. Player one writes the number they guessed on the second number line. Player two writes that number on the first number line and informs player one if the number is larger or smaller than the number they drew.
  • Player two then guesses a number and writes it on the second number line. Player one writes the number guessed on the first number line and then informs player two if the number is larger or smaller than the number he or she drew.
  • Players take turns guessing numbers. The first player to guess the correct decimal wins.

Teaching Different Decimal Values with Simple Number Line Game

The free printable pdf provides four different board games that will help your youngster to learn about decimals.

Activity 1: Finding Tenth Decimal Value

The first game board has a number line that is labeled with a zero and a one. In between those numbers, the line is divided into nine equal parts, making it easy to move up by tenths. Only the tenth place value is represented by the decimal cards.

This is a great place to start, as it is easy to count by tenths using the increments on the number line. The first one whole will be able to reach 1 will be the winner.

Finding Tenth Decimal Value in Number Line

Activity 2: Determining Numbers Between Two Decimal Points

The game board is exactly the same as the first one, but the decimal cards now are in the hundredths. A little more thinking is required with this game board, as children must recognize that a number like 0.23 will be between 0.2 and 0.3

Determining Numbers Between Two Decimal Points

Activity 3: Comparing Decimals with Their Equivalent Fraction Values

Game board three has a new twist. There are only three lines between the one and the zero, and it is a great way to help children connect fractions and decimals.

If children are familiar with fractions and number lines they may quickly recognize that there are four equal parts. And if they recognize that, they will know that the first line is 1/4, the next is 1/2, and the third one is 3/4.

The decimals for this game will include 0.25, 0.5, and 0.75….. allowing for connections to be made between fractions and decimals. Some children may figure this out on their own, and others may need your support in making this connection.

Comparing Decimals with Their Equivalent Fraction Values

Activity 4: A Harder Version to Make Your Skills Better

The final decimal number line game only has a line for zero, one-half, and one. This really forces students to figure out exactly where their decimals will go and order them with less support than before.

Playing games with math problems builds connections and is a great way to practice a certain skill over and over. I hope that your children enjoy their math time with this game.

A Harder Version with Lesser Options in the Number Line

Download This Free Printable PDF

In the above discussion, I have discussed four different board games regarding decimal numbers. These decimal number line game activities will help your young champ to enhance his skill regarding these types of decimal problems.

Below is the free decimal number line game worksheet. You can download this practice sheet by clicking on the download button and printing it from your device.


Please feel free to give any feedback regarding this article. Also, if your little one is having trouble understanding the games, then let us know in the comment section.



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