Multiplying by Multiples of 10
4th GradeMath40 min
aligned to 4.nbt.b.5
Learning Objective
I can multiply a two-digit multiple of 10 by a one-digit number.
Lesson Flow
Watch Video
Multiplying and dividing by 10, 100, 1000
Khan Academy
Guided Notes
Key concepts students will learn:
- •
When you multiply a number by 10, every digit shifts one place to the left and you add a trailing zero, so 237 × 10 = 2370.
- •
To multiply a two-digit multiple of 10 by a one-digit number, multiply the tens digit by the one-digit and then add a trailing zero: 70 × 4 → 7 × 4 = 28 so 70 × 4 = 280.
- •
Use the same idea for other problems: 60 × 9 = 540.
Practice
6 questions • Multiple choice & Short answer
Exit Ticket
“What is 30 × 7?”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
