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!
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).
You can compare numbers using symbols like \( > \), \( < \), and \( = \). Always start comparing from the leftmost digit.
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.
Place value is used in reading large numbers, like populations or distances. Rounding helps when estimating prices while shopping.
Write 305,742 in expanded form: 300,000 + 5,000 + 700 + 40 + 2
Round 58,326 to the nearest thousand: 58,000
Learn how digits work together in big numbers and how to compare, order, and round them.