➗ HCF & LCM Word Problems Task Cards | GCF & LCM | Grade 4+ Singapore Math

Help students master Highest Common Factor (HCF / GCF) and Lowest Common Multiple (LCM) through meaningful, real-world word problems with this set of 8 task cards designed for Grade 4 and above.

These problems go beyond computation by requiring students to analyze situations, choose the correct strategy (HCF vs. LCM), and explain their reasoning, which is a hallmark of the Singapore Math approach.

📘 What’s Included:

✔️ Student recording sheets for showing work

✔️ Answer key

✔️ Print-and-go format (classroom-ready)

✔️ 8 word problem task cards involving

• Highest Common Factor (Greatest Common Factor)
• Lowest Common Multiple (First / Least Common Multiple)
  
  

🎯 Skills Covered

• Solve HCF / GCF word problems
  
• Solve LCM word problems
  
• Decide whether a situation requires HCF or LCM
  
• Apply logical reasoning to multi-step word problems
  
• Strengthen number sense and problem-solving strategies
  

📚 Standards & Curriculum Alignment

✔️ Common Core Math – Grade 6

• 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; apply these concepts to solve real-world problems
  

✔️ Singapore Math–Aligned

• Introduced earlier and developed conceptually in
  Primary Mathematics • Dimensions Math • Math in Focus, making this resource suitable for advanced Grade 4–5 students and Grade 6 Common Core alignment
  

👩‍🏫 Perfect For

• Math centers & stations
  
• Small-group instruction
  
• Guided practice
  
• Word-problem enrichment
  
• Singapore Math classrooms
  
• Upper-elementary intervention or challenge work
  

👧👦 Grade Levels

Grade 4 (certain Singapore Math curricula) and above

Grade 6 Common Core

💡 Teacher Tip

Have students underline key information and discuss why the problem requires HCF or LCM before solving—this builds strong conceptual understanding, not just procedural skills.

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