Multiply by 5 and 10 (289)

Teaching Notes

The 5s and 10s are often the easiest tables for students to master due to their clear patterns. For 10s, emphasize the 'add a zero' pattern. For 5s, point out that all answers end in 0 or 5. Use the clock (minutes) as a real-world reference for the 5 times table. **Instruction Tips:** These worksheets focus on multiplication tables of 5 and 10, helping students develop instant recall of basic multiplication facts. **Worked Example:** 5 x 10 worked example **Problem:** 5 x 10 **Strategy:** Think of 5 groups of 10 or use repeated addition: 10 + 10 + 10 + 10 + 10 = 50. **Hints:** - Use skip counting by 5s or 10s to find the answer. **Steps:** - Multiply 5 by 10 to get the answer.

Vocabulary

Multiply: Combine equal groups.

Factor: Numbers multiplied together.

Common Mistakes

• Thinking 5x10 is 510 (misapplying the pattern)
• Losing track when skip-counting by 5s past 50
• Confusing the 5s pattern (0, 5, 0, 5) with even/odd concepts
• Confusing multiplication with addition (e.g., 5 x 3 = 5 + 3 instead of 5 + 5 + 5).
• Errors with multiples of 10, especially beyond 10x10 (e.g., 5 x 10 = 5 instead of 50).
• Slow recall, relying heavily on counting rather than memorization for fluency.

Differentiation

Discussion Questions

• What do all multiples of 10 have in common?
• Why is the 5 times table like reading a clock?
• If you have 10 nickels, how much money do you have? Is that easier to count by 5s or 10s?
• How can skip counting help you quickly solve multiplication problems with 5 and 10?
• Where do you see multiplication by 5 or 10 in your everyday life?
• What patterns do you notice when multiplying by 5? What about by 10?

Extension Activities

• Count hands in the classroom (by 5s).
• Count toes in the classroom (by 10s).
• Money math: Calculate values of piles of nickels (5c) and dimes (10c).

Parent Tip

Ask your child to count by 5s and 10s to 100.

Skill Cluster

Multiplication Fluency

Estimated Time

15 minutes

Skills Practiced

Prerequisites

• 288
• Repeated Addition
• Skip Counting by 5s and 10s
• Understanding Equal Groups

Next Steps

• Multiplication Tables of 2 and 4
• Mixed Multiplication Facts (0-12)
• Multiplication Strategies
• Multiplication Tables of 3 and 6