📖

Mental Math: Quick Ten Additions

Adding Two-Digit Numbers and Multiples of 10

Day 69of 180
Week 14of 36
30Minutes
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🖨️ Download Worksheet (PDF)🧮 Download Math Practice (PDF)
🎯 What You'll Learn

Learning Objectives

1

Mentally add tens to numbers up to 100

2

Understand how adding tens changes number placement

3

Develop confidence in mental math skills

📖 Scripture Connection

Proverbs 16:16

“How much better it is to get wisdom than gold! Yes, to get understanding is to be chosen rather than silver.”

— Proverbs 16:16 (WEB)

Just as wisdom is valuable, understanding math helps us grow in problem-solving skills

📦 Materials Needed

  • Hundred chart
  • Base-ten blocks
  • Dice or number cards
  • Pencil and paper
📚 Step-by-Step

Lesson Plan

1Opening (5 min)

Welcome to today's BibleMouse math adventure! Let's review what we learned yesterday about adding tens.

💭 Review Question: Can you show me how we add 10 to a number on our hundred chart?
2Teaching (10 min)

Today we'll play a fun game to practice adding tens quickly in our minds!

📌 Key Talking Points:
  • When we add 10, the tens place changes but the ones place stays the same
  • We can use our hundred chart to help us see the pattern
  • Mental math helps us solve problems faster
💬 Discussion Questions:
  • What happens to a number when we add 10?
  • Can you show me how 24 + 10 looks on our hundred chart?
3Activity: Ten Jump Challenge (12 min)
game

A fast-paced game to practice mental addition of tens

📝 Instructions:
  1. Roll a die or draw a number card (20-50)
  2. Quickly add 10 to that number in your mind
  3. Use the hundred chart to check your answer
  4. Keep score of correct answers
🔄 Variations:

Simpler: Use a smaller range of numbers (10-30)

Challenge: Add two sets of tens (like 20 + 30)

4Closing (3 min)

Let's review our ten addition skills!

📝 Review Questions:
  • What did we learn about adding tens?
  • What was your favorite part of our game?

Coming up: Tomorrow we'll explore adding tens to money with dimes!

👨‍👩‍👧 For Parents

Teaching Notes

📚 Background:

Mental math is crucial for developing number sense

💡 Teaching Tips:
  • Be patient and make math fun
  • Use lots of praise and encouragement
  • Let your child see mistakes as learning opportunities
🤔 Common Struggles:

Children might confuse tens and ones places

👀 Signs of Understanding:

Confidence in quickly adding tens mentally

🚀 Want More?

Extension Activities

  • Create a 'Ten Jump' worksheet from BibleMouse Printables Library
  • Practice adding tens during daily activities like cooking or shopping

Ready for Tomorrow?

Great job completing today's lesson!

Continue to Day 70 →Back to Math