Understanding Numbers

Numbers are everywhere, from counting apples to measuring time. Learning number sense means understanding what numbers mean, how they work together, and how to use them in everyday life.

Types of Numbers

• Whole numbers: 0, 1, 2, 3, ...
• Fractions: pieces of a whole, like \( \frac{1}{2} \) or \( \frac{3}{4} \)
• Decimals: numbers with a dot, like 3.14

Operations

Operations are ways to work with numbers:

• Addition (\( + \))
• Subtraction (\( - \))
• Multiplication (\( \times \))
• Division (\( \div \))

Why It Matters

Understanding how numbers interact helps you solve problems, like figuring out how much money you need for a snack or how long until your next birthday.

Real-World Fun

Whether you’re sharing a pizza with friends or splitting up chores at home, number sense helps you make fair and smart decisions.