Learning Goal
Part of: Compute fluently with multi-digit numbers and find common factors and multiples — 3 of 3 cluster items
Find the greatest common factor and the least common multiple
**6.NS.B.4**: Find the greatest common factor of two whole numbers less than or equal to 100 and the least common multiple of two whole numbers less than or equal to 12. Use the distributive property to express a sum of two whole numbers 1-100 with a common factor as a multiple of a sum of two whole numbers with no common factor. For example, express 36 + 8 as 4(9 + 2).
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6.NS.B.4: Find the greatest common factor of two whole numbers less than or equal to 100 and the least common multiple of two whole numbers less than or equal to 12. Use the distributive property to express a sum of two whole numbers 1-100 with a common factor as a multiple of a sum of two whole numbers with no common factor. For example, express 36 + 8 as 4(9 + 2).
What you'll learn
- Find the greatest common factor (GCF) of two whole numbers up to 100 by listing factors or using prime factorization
- Find the least common multiple (LCM) of two whole numbers up to 12 by listing multiples
- Use the distributive property to rewrite a sum of two whole numbers (1-100) with a common factor as a product: express a + b as GCF(a,b) × (a/GCF + b/GCF)
Slides
Interactive presentations perfect for visual learners • Interactive presentation
Slide Video
Watch narrated slides play like a video lesson • Narrated slide playback
Exercises
Practice problems to build fluency and understanding • 1 exercises