Common Core: 2nd Grade Math

This subject covers foundational math concepts for 2nd graders, including addition, subtraction, and basic problem-solving skills.

Understanding Numbers and Place ValueAddition StrategiesSubtraction Strategies
Solving Word ProblemsAdding and Subtracting with RegroupingEven and Odd Numbers
Counting Money and Making ChangeUsing Math to Tell TimeMeasuring and Comparing Lengths
Drawing Pictures and DiagramsChecking Your Work
Understanding Number...Addition StrategiesSubtraction Strategi...Solving Word Problem...Adding and Subtracti...Even and Odd NumbersCounting Money and M...Using Math to Tell T...Measuring and Compar...Drawing Pictures and...Checking Your Work
Basic Concepts

Understanding Numbers and Place Value

Discovering Numbers

Numbers are everywhere! In 2nd grade, you'll learn to read, write, and understand numbers up to 1,000. When we talk about numbers, it's important to know what each digit means. This is called place value.

Place Value Magic

Each digit in a number has a special place. The ones place is on the right, the tens place is next, and then the hundreds place. For example, in 352:

  • The 3 is in the hundreds place and means 300.
  • The 5 is in the tens place and means 50.
  • The 2 is in the ones place and means 2.

Comparing and Ordering Numbers

You will also learn how to compare numbers using symbols like > (greater than), < (less than), and = (equal to). You can put numbers in order from smallest to largest or largest to smallest.

Why It Matters

Understanding numbers and place value helps you count money, tell time, and solve problems every day!

Examples

  • 524 has 5 hundreds, 2 tens, and 4 ones.

  • 738 > 453 because 738 is greater than 453.

In a Nutshell

Learn how to read, write, and compare numbers using place value.

Key Terms

Place Value
The value of a digit depending on its position in a number.
Compare
To decide if one number is greater, less, or equal to another.
Next
Addition Strategies