Which One Doesn't Belong - Numbers Sense Activities

Grade Levels
PreK - K, Homeschool
Resource Type
Formats Included
  • PDF
80 Number Cards
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  1. Students will love finding WHICH ONE DOESN'T BELONG with these fun spot the difference activity cards! Use as a small group activity then have students work independently on these task cards during morning Table Time, in math & literacy centers, or for free-choice center time. WHICH ONE DOESN'T
    Price $9.50Original Price $12.00Save $2.50


Students will enjoy finding Which One Doesn’t Belong as they practice recognizing numbers and counting sets 1 to 10. These simple number cards can be used in small groups at the Teacher Table, for morning arrival or Table Time, and in math centers. Which One Doesn’t Belong Numbers features ten frames, dice, sets of objects, numerals, and finger/hand counting.

***Easy to Prep! *** Simply print the Number Cards and gather “tokens” for students to put on the box of Which One Doesn’t Belong. Use large buttons, pom-poms from the craft store, mini erasers, colorful gems, or wooden clothespins as tokens. You can also have students use a dry erase marker to put an X on the laminated card.

The Which One Doesn’t Belong Numbers resource includes the following:

  • 80 Number Cards for numbers 1 to 10 (40 Color Cards and 40 Black & White Cards)
  • Detailed How to Use Instructions
  • Classroom Photographs Page shows samples of how to set up the activity
  • Number Word Cards

Preschool, PreK, Transitional Kindergarten TK, and Kindergarten students will benefit from using this resource as they work on math standards.

***Take a look at the preview to see more of this engaging resource!***


Amazing Small Group Activities & Resources for Your Classroom:


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Total Pages
80 Number Cards
Answer Key
Teaching Duration
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to see state-specific standards (only available in the US).
When counting objects, say the number names in the standard order, pairing each object with one and only one number name and each number name with one and only one object.
Understand that the last number name said tells the number of objects counted. The number of objects is the same regardless of their arrangement or the order in which they were counted.
Count to answer “how many?” questions about as many as 20 things arranged in a line, a rectangular array, or a circle, or as many as 10 things in a scattered configuration; given a number from 1-20, count out that many objects.
Compare two numbers between 1 and 10 presented as written numerals.


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