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Prime & Composite Color by Number — Polar Bear
Interactive worksheet with auto-grading, instant feedback, and printable PDF.
Grade 4MathInteractive · Printable
Aligned to4.OA.B.4
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1 Common Core standard
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About this worksheet
With Prime / Composite Numbers Color by Number, the more problems students get right, the more of the picture appears. Students sort each answer into the right group, color by the key, and a hidden picture appears. Students classify numbers as prime or composite. Built for Grade 4 and aligned to 4.OA.B.4. Print it for morning work and centers or assign the self-checking interactive version for home — each download includes the PDF and the digital answer-key version.
Curriculum
Common Core standards covered
4.OA.B.4
Find all factor pairs for a whole number in the range 1-100. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1-100 is a multiple of a given one-digit number. Determine whether a given whole number in the range 1-100 is prime or composite.
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