Grade 4 Math Flashcards: Factors and Multiples

How to Present

• Print on card if possible, cut along the dashed lines.
• Use for matching, sorting, snap and memory games (see the Teacher Resources).
• Display on the word wall during the unit.

Teacher Tips

Keep a hundred chart on every desk for this unit. Arrays make factors visible: if you can make a rectangle with r rows, r is a factor.

Learning Objectives

• Find all the factor pairs of a whole number from 1 to 100 using arrays and multiplication facts.
• List the multiples of a number and decide if a number is a multiple of another.
• Find common factors and common multiples of two numbers.
• Decide if a number is prime or composite and explain why (1 is neither).

Differentiation

Support: Use tiles or grid paper for every factor question. Challenge: Find a number with exactly 3 factors (square numbers of primes: 4, 9, 25, 49). English language learners: Teach "factor" and "multiple" with gestures: factors are the "building blocks", multiples are the "times-table jumps".

What's Included

• Vocabulary cards: 4 cards
• Array cards: 4 cards
• Prime or composite? number cards: 6 cards
• Answer guide for matching and sorting

Additional Files

• Grade 4 Math Flashcards: Factors and Multiples (DOCX)

Teacher Reviews