📖

Adding Three Numbers: Looking for Tens

Addition Within 100: Mental Math Strategies

Day 29of 180
Week 6of 36
30Minutes
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🖨️ Download Worksheet (PDF)🧮 Download Math Practice (PDF)
🎯 What You'll Learn

Learning Objectives

1

Identify combinations of numbers that make ten or multiples of ten

2

Add three two-digit numbers using mental math strategies

3

Develop problem-solving skills with a cheerful, patient attitude

📖 Scripture Connection

Proverbs 3:13-14

“Happy is the man who finds wisdom, the man who gets understanding. For her good profit is better than silver, and her return better than fine gold.”

— Proverbs 3:13-14 (WEB)

Just as we look for smart ways to solve math problems, we can seek wisdom in understanding God's teachings

📦 Materials Needed

  • Base-ten blocks
  • Hundred chart
  • Pencil
  • Worksheet
  • Dice (optional)
📚 Step-by-Step

Lesson Plan

1Opening (5 min)

Welcome to today's BibleMouse math adventure! Let's review how we've been finding smart ways to add numbers.

💭 Review Question: Who can tell me how we added numbers in our last lesson?
2Teaching (10 min)

Today, we'll learn a special trick for adding three numbers by finding tens first!

📌 Key Talking Points:
  • Look for number combinations that make 10
  • Rearrange numbers to make adding easier
  • Use base-ten blocks to help visualize
💬 Discussion Questions:
  • What makes adding three numbers tricky?
  • How can we make adding easier?
3Activity: Treasure Ten Challenge (12 min)
game

A fun game where players find number combinations that make ten

📝 Instructions:
  1. Roll three dice or draw three number cards
  2. Rearrange the numbers to create combinations of ten
  3. Add the three numbers quickly
  4. Keep score and see who can make the most ten-combinations
🔄 Variations:

Simpler: Use fewer dice or limit number range

Challenge: Add time pressure or use larger numbers

4Closing (3 min)

Review our new strategy for adding three numbers

📝 Review Questions:
  • What strategy did we use today?
  • Why is finding tens helpful?

Coming up: Tomorrow, we'll learn about counting on by tens and ones!

👨‍👩‍👧 For Parents

Teaching Notes

📚 Background:

Mental math strategies help children become flexible thinkers

💡 Teaching Tips:
  • Be patient and encouraging
  • Use physical manipulatives to help visualization
  • Praise effort over perfect answers
🤔 Common Struggles:

Children may get frustrated when numbers don't immediately make sense

👀 Signs of Understanding:

Ability to rearrange numbers and find ten-combinations

🚀 Want More?

Extension Activities

  • Create a math journal page illustrating the strategy
  • Play 'Treasure Ten Challenge' with family members
  • Use BibleMouse Printables Library for additional worksheets

Ready for Tomorrow?

Great job completing today's lesson!

Continue to Day 30 →Back to Math