Adding Objects in Rectangular Arrays Independent Worksheet

After analyzing objects arranged in rectangular arrays, youngsters write addition sentences to describe each. Model this for the class before they start, as the idea isn't completely clear. Note the third question may throw some students for a loop; they have to include zero as one of the addends. There are arrays with one, two, three, and four addends here. Ten problems total.

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CCSS: Adaptable
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1st - 3rd
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Common Core