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Grade 4

CCSS Math Standard: 4.OA.4

Gain familiarity with factors and multiples. 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.

  • Factoring and Calendars

    In this video, students will factor 365 in an attempt to create a better system of months and weeks.

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  • Factor Scrambles

    A sample puzzle from the Factors and Multiples edition of Prufrock’s Advanced Common Core Math Explorations series.