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Regrouping 1 Ten for 10 Ones Models to Subtract Two-and One-Digit Numbers Subtracting Two- and One-Digit Numbers Models to Subtract Two-Digit Numbers Subtracting Two-Digit Numbers Using Addition to Check Subtraction Two-Question Problems
Regrouping 10 Ones for 1 Ten Models to Add Two-and One-Digit Numbers Adding Two-and One-Digit Numbers Models to Add Two-Digit Numbers Adding Two-Digit Numbers Adding Three Numbers Draw a Picture and Write a Number Sentence
Adding Tens Adding Ones Adding Tens and Ones Adding on a Hundred Chart Problem Solving: Look for a Pattern Subtracting Tens Finding Parts of 100 Subtracting on a Hundred Chart Adding On to Subtract Problem Solving: Missing or Extra Information
Dime, Nickel, and Penny Quarter and Half-Dollar Counting Collections of Coins Ways to Show the Same Amount One Dollar Problem-Solving: Make an Organized List
Models for Tens Models for Tens and Ones Reading and Writing Numbers Using Models to Compare Numbers Using Symbols to Compare Numbers Before, After, and Between Order Numbers Even and Odd Numbers Problem Solving: Use Data from a Chart