Compare, order, and estimate whole numbers and decimals using place value and magnitude sense.
Order large whole numbers
Problem
Order these attendance counts from least to greatest: \(420,891\); \(429,108\); \(421,980\); \(430,017\); \(429,081\).
Big Picture
What this problem is really about
This is an ordering problem built on place value. We’ll compare the numbers from the highest place to the right, grouping any that stay tied, and then break those ties at the next differing digit. That gives a consistent least-to-greatest order without relying on the ending digits alone.
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