Day 24 of 30
Find 10 more and 10 less than a number
Content is AI-assisted and continuously improved through educator review
Learning Objective
I can find 10 more and 10 less than a number.
Today we will learn how to find 10 more and 10 less than a number. Math helps us solve problems and understand the world around us.
"10 more" means adding 10 to a number. For example, 10 more than 23 is 33. "10 less" means subtracting 10. For example, 10 less than 47 is 37. "1 more" means adding 1, and "1 less" means subtracting 1. These are quick mental math strategies! When you add or subtract 10, only the tens digit changes. When you add or subtract 1, only the ones digit changes. Practice to get faster!
Let's break this down step by step so it's easy to understand. Follow along with the examples, and don't worry if it takes some practice to get the hang of it!
Remember: Making mistakes is part of learning. If something is tricky, try again, look at the examples, or ask for help.
A symbol that tells us how many
A question we need to solve
Instructions
Materials Needed
- Counters or objects
- Pencil
- Practice sheet
Count the objects: 🍎🍎🍎🍎🍎 How many apples?
What number comes after 7?
Count by 2s: 2, 4, 6, ___, ___
Teaching Tip
For younger learners: Use concrete objects and hands-on activities when teaching find 10 more and 10 less than a number. Keep sessions short (10-15 minutes) and incorporate movement or songs when possible.