Addition Strategies:
Base Ten Blocks
Regrouping
Regrouping Two Ways
Compensation Strategy
Compensation Strategy Review - p. 43 #6
Numberline Method
Numerline Addition - HW 9/13
Subtraction Strategies:
Subtraction model without decomposition - p. 60 #2
Subtraction model with decomposition - p. 60 #3
Subtraction Compensation
Subtraction 4 Ways - HW 9/20
Subtraction Across Zero
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