Basic Concepts
Number Sense and Operations
Understanding Numbers
Numbers are everywhere! They help us count, measure, compare, and solve problems. In this section, you'll explore whole numbers, fractions, decimals, and how to use them confidently.
Operations with Numbers
Learn how to add, subtract, multiply, and divide different kinds of numbers. You'll also discover how to estimate answers and check if your solutions make sense.
Why Is Number Sense Important?
Good number sense helps you quickly decide the best way to solve a problem, whether it's figuring out how much money you have or dividing pizza among friends.
Key Ideas
- Recognizing odd and even numbers
- Understanding place value
- Comparing and ordering numbers
- Using mental math tricks
Practice Makes Perfect
The more you work with numbers, the faster and more accurate you'll become!
Examples
If you have 1/2 of a pizza and your friend has 1/4, who has more?
What is 3.75 + 2.5?
In a Nutshell
Builds a strong foundation with numbers and basic math operations.