Study Guide — 6.NS.B.4
Find the greatest common factor of two whole numbers less than or equ…
Extend number sense to integers, rationals, and absolute value on the number line.
What this standard means
- 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)..
- Apply find the greatest common factor of two whole numbers less than or equ… with models and explanation
- Operates with integers and rationals accurately
_See printable PDF for diagram._
How to use the 20 practice sets
| Sets | When to use | | --- | --- | | 1–5 | Intro — explore together, short written items | | 6–10 | Core skills — diagrams and written practice | | 11–15 | Mixed review — explain thinking | | 16–20 | Stretch — word problems and mastery tasks |
Pacing: 10–15 minutes per session.
How to practice
1. Use a number line for addition of signed numbers 2. Convert between fractions, decimals, and percents 3. Plot and compare rational numbers
_See printable PDF for diagram._
Common mistakes
- Subtracting integers in the wrong direction
- Absolute value sign errors
- Incorrect placement of negatives on the number line
Review and practice tests
1. Start Review 1/10 when sets 1–3 feel comfortable. 2. Move up one review level with little help. 3. Use Practice Test 4/10–6/10 for mid-standard checks. 4. Practice Test 10/10 is the mastery bar for 6.NS.B.4.
- [ ] Operates with integers and rationals accurately
- [ ] Uses absolute value correctly
- [ ] Explains reasoning with a number line or diagram
Materials for this standard
- Practice Problems — 20 printable sets (computational and word problems)
- Review — 10 difficulty levels
- Practice Test — 10 difficulty levels
- Answer key — for parents and tutors