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Base Ten Operations

Understand three-digit numbers, skip-count, and add and subtract within 1,000.

1
🏛ī¸Three-Digit Place Value

Hundreds, tens, and ones — three-digit numbers have three important places!

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2
🐸Skip Counting by 5s, 10s, and 100s

Jump by 5, 10, or 100 — skip counting reveals powerful number patterns!

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3
🧮Adding and Subtracting Within 1,000

Add and subtract three-digit numbers using place value — one column at a time!

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4
↔ī¸Number Lines for Comparing and Ordering

A number line keeps numbers in perfect order — use it to compare and find differences!

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