K-5 friendly lesson
Try one idea, then jump into the activity.These lessons are designed to feel short, friendly, and easy to follow.
Ten More or Less
āā Ten more or ten less changes only the tens place. The ones digit stays the same.
Lesson 3
Concept
Think on a hundred chart: ā¢ Move down one row = 10 more ā¢ Move up one row = 10 less Examples: ā¢ 34 -> 44 (ten more) ā¢ 34 -> 24 (ten less) ā¢ 70 -> 80 (ten more) ā¢ 70 -> 60 (ten less)
Try it
Find ten more and ten less: 1. 25 2. 41 3. 68 4. 90 5. 13 Challenge: 6. A number has 10 more = 57. What is the number?