Decomposing Numbers / Missing Addends Games - Hamster Hullabaloo! & Acorn Addends - Common Core Math Activities for Pre-K & K
There are two activities in this product. Hamster Hullabaloo! and Acorn Addends. Both are activities to practice decomposing numbers, however, each one addresses a different Common Core standard.
Hamster Hullabaloo meets standard K.OA.A.3. Included are playing mats, acorn game pieces and number cards. Students choose a number card and place it in the center of the mat. They must decompose the number,by putting the correct number of acorns on each side of the mat.
Acorn Addends meets standard K.OA.A.4 and it reinforces addition skills. It is a set of 56 task cards, with all the combinations for decomposing numbers 1-10, with a missing addend. Each card has two numbers, and a blank spot for the missing addend. Students choose the acorn with the correct number to add to the blank spot. There is a recording sheet that is optional, to use to play scoot. You can also play without the recording sheet and write directly on the task cards, if you laminate them and use dry erase markers. An answer key is included.
K.OA.A.3 - Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation.
K.OA.A.4. - For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.
This product is also available in a bundle, offering a 20% savings, look for the bundles in the Kindergarten Math series.
If you are interested in the rest of the Kindergarten Math series, just click the link: Kindergarten Math Series!
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