Understanding Big Numbers

Place value helps us know how much each digit in a number is worth, based on where it sits. In 4th grade, you'll work with numbers up to the millions!

Reading and Writing Numbers

Numbers can be written in standard form (123,456), expanded form (100,000 + 20,000 + 3,000 + 400 + 50 + 6), and word form (one hundred twenty-three thousand, four hundred fifty-six).

Comparing and Ordering

You can compare numbers using symbols like \( > \), \( < \), and \( = \). Always start comparing from the leftmost digit.

Rounding Numbers

Rounding makes numbers easier to use. To round 67,849 to the nearest thousand, look at the hundreds place: 849 rounds up, so it's 68,000.

Real-Life Connection

Place value is used in reading large numbers, like populations or distances. Rounding helps when estimating prices while shopping.