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NBT.4 - Fluently ADD and SUBTRACT multi-digit numbers
NBT.4 video resources:
Khan - Adding 3-digit Numbers
Khan Academy - Why Carrying Works
Brain Pop - Adding with Regrouping
Study Jams - Addition with Regrouping Tutorial
Study James - Subtraction with Regrouping Tutorial
Khan Academy - Subtracting with Regrouping
Khan Academy - Subtracting with 0
Brain Pop - Subtracting with Regrouping
NBT.4 practice resources:
ADDITION PRACTICE SUBTRACTION PRACTICE
IXL - Adding Numbers
IXL - Addition Word Problems
ABCMath - ADDITION PRACTICE
Addition Baseball
Rags to Riches - ADDITION
IXL - Subtracting Numbers
IXL - Subtraction Word Problems
ABCMath - SUBTRACTION Practice
Subtraction Baseball
Rags to Riches - SUBTRACTION