Kindergarten Math Task Cards Number and Operations in Base Ten

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72 task cards
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  1. Need to introduce, reteach, extend a math standard throughout the year? This bundle of over 400 task cards address all kindergarten math skills with easy-to-follow steps and engaging tasks. Students can work independently or play with a partner or small group. These task cards use kindergarten-frien
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Give students independent or partner practice with composing and decomposing teen numbers using tens and ones with these task cards. They cover the K.NBT strand and can be used in a variety of ways. Teachers can also use them in small groups for re-teaching with scaffolded support. These task cards would be excellent additions to your math rotations and center activities.

There are 72 total cards in this set. It focuses on the Number and Operations in Base Ten (K.NBT) strand of the Common Core Standards. Since this strand only includes one standard, these task cards were created to expose students to teen numbers in a variety of ways. They will be able to manipulate, compose, decompose, and write teen numbers in multiple ways.

Please download the preview to see how each skill is used in the task cards and the recommended ways to use them.

Want more task cards? Check these out:

Math Task Cards: Counting and Cardinality

Math Task Cards: Operations and Algebraic Thinking

Math Task Cards: Measurement and Data

Math Task Cards: Geometry

If you have any further questions or would like more explanation about using this product, please ask in the Q&A section or email me at

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Holly @ Research and Play

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72 task cards
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to see state-specific standards (only available in the US).
Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings, and record each composition or decomposition by a drawing or equation (e.g., 18 = 10 + 8); understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.


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