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Grade 6 · Unit 1~55 min4 topics · 7 videosGADOE framework↗

Number System & Operations

Master factors, multiples, fractions, and decimal operations. This is the foundation every later unit relies on.

Start the first topic →See all topics

Unit menu

Unit 1: Number System & Operations

Your progress

0 of 4 done0%

On this page

  • Topics
  • Objectives & vocabulary
  • Extra practice

Unit menu

Unit 1: Number System & Operations

Your progress

0 of 4 done0%

On this page

  • Topics
  • Objectives & vocabulary
  • Extra practice
αAπΣ∞∂θ√x²≠∫÷≤%+½αβΔ
Work through these

Topics in this unit

Each topic is a short page: read the walkthrough, watch the video, try the practice, then take a quick quiz. Go in order or jump to what you need.

1
Factors, Multiples, GCF & LCM

Numbers that divide in, numbers you count by, and the values they share.

  • 1 video
  • Practice
  • 3-question quiz
  • ~14 min
2
Adding & Subtracting Fractions

Same bottom number? Add the tops. Different? Find a common denominator first.

  • 2 videos
  • Practice
  • 3-question quiz
  • ~14 min
3
Multiplying & Dividing Fractions

Multiply straight across. To divide, keep–change–flip.

  • 2 videos
  • Practice
  • 3-question quiz
  • ~15 min
4
Decimal Operations

Line up the point to add or subtract; count places to multiply.

  • 2 videos
  • Practice
  • 3-question quiz
  • ~13 min
αAπΣ∞∂θ√x²≠∫÷≤%+½αβΔ
Goals

Learning objectives

By the end of this unit, you should be able to:

  • ✓Find factors, multiples, GCF, and LCM
  • ✓Add, subtract, multiply, and divide fractions
  • ✓Operate fluently with multi-digit decimals
  • ✓Decide when an estimate is good enough
  • ✓Translate word problems into number sentences

Key vocabulary

Factor
A number that divides evenly into another.
Multiple
The product of a number and an integer.
GCF
Greatest Common Factor — the biggest shared factor.
LCM
Least Common Multiple — the smallest shared multiple.
αAπΣ∞∂θ√x²≠∫÷≤%+½αβΔ
More practice

External resources

Hand-picked links from Khan Academy and trusted worksheet libraries.

K5 Learning

K5 Learning — Grade 6 worksheets

Free Grade 6 worksheets across all topics.

Open resource
Math Worksheets 4 Kids

Factors & prime factorization

Open resource
Math Worksheets 4 Kids

Greatest Common Factor

Open resource
Math Worksheets 4 Kids

Least Common Multiple

Open resource
Math Worksheets 4 Kids

Fractions practice

Open resource
Math Worksheets 4 Kids

Decimal operations

Open resource
αAπΣ∞∂θ√x²≠∫÷≤%+½αβΔ
←Back toGrade 6 library→Next up · Unit 2Ratios & Proportional Relationships