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Addition and Subtraction
Place Value Drawings
3 addition methods
Ungrouping to subtract
Rounding
Subtraction poem
Expanded notation method
Subtracting across zero
Multiplication
Multiplication songs and tricks
Area Model
Place value sections method
Shortcut method
Multiplication tunes with lyrics
Estimating with Multiplication
PVSM & Exp. Form Method
Claire's rectangle method
1 digit x 2 digit
Algebraic method
2 digit x 2 digit shortcut
Division
Place Value Sections Method for Division
Expanded Notation Method for division
PVSM vs. Expanded methods of division
Digit by Digit Method
Measurement
Customary length
Customary weight
Customary volume
Time
Metric length
Metric weight
Metric volume
Area
Perimeter
Fractions
Adding and subtracting mixed numbers
Subtracting Mixed numbers with ungrouping