📖

Adding Tens: The Easy Way

Adding Two-Digit Numbers and Multiples of 10

Day 66of 180
Week 14of 36
30Minutes
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🖨️ Download Worksheet (PDF)🧮 Download Math Practice (PDF)
🎯 What You'll Learn

Learning Objectives

1

Understand how to add multiples of 10 to two-digit numbers

2

Recognize that only the tens place changes when adding tens

3

Develop confidence in mathematical problem-solving

📖 Scripture Connection

Proverbs 9:10

“The fear of Yahweh is the beginning of wisdom. The knowledge of the Holy One is understanding.”

— Proverbs 9:10 (WEB)

Just as understanding math requires learning step-by-step, wisdom comes from patient learning and practice

📦 Materials Needed

  • Base-ten blocks
  • Hundred chart
  • Pencil
  • Worksheet
  • Colored markers
📚 Step-by-Step

Lesson Plan

1Opening (5 min)

Welcome to today's BibleMouse math adventure! Let's review what we learned about adding numbers last week.

💭 Review Question: Can you show me how we add numbers by breaking them into tens and ones?
2Teaching (10 min)

Today we'll learn a super easy way to add tens to two-digit numbers!

📌 Key Talking Points:
  • When we add tens, only the tens place changes
  • 34 + 20 means we're adding 3 tens and 2 tens
  • The ones place stays exactly the same
💬 Discussion Questions:
  • What happens to the ones when we add tens?
  • Can you predict what 45 + 30 will look like?
3Activity: Tens Jump Game (12 min)
hands-on

Use base-ten blocks to visualize adding tens

📝 Instructions:
  1. Start with a two-digit number using blocks
  2. Add another group of tens blocks
  3. Count the total tens
  4. Record the addition problem
🔄 Variations:

Simpler: Use fewer blocks, work with smaller numbers

Challenge: Create word problems involving tens addition

4Closing (3 min)

Let's review our BibleMouse math discoveries today!

📝 Review Questions:
  • What did we learn about adding tens?
  • How do tens and ones work together?

Coming up: Tomorrow we'll explore jumping on the hundred chart to add tens!

👨‍👩‍👧 For Parents

Teaching Notes

📚 Background:

Adding tens is a foundational skill for mental math

💡 Teaching Tips:
  • Use lots of positive encouragement
  • Make it fun and game-like
  • Don't rush - let child explore
🤔 Common Struggles:

Keeping ones place unchanged when adding tens

👀 Signs of Understanding:

Consistent understanding that tens change, ones stay same

🚀 Want More?

Extension Activities

  • Create a tens addition memory game
  • Use BibleMouse Printables Library for extra practice worksheets

Ready for Tomorrow?

Great job completing today's lesson!

Continue to Day 67 →Back to Math