Embedded Files
addition
addition
Column addition using two 4 digit numbers without exchange
addition
addition
Column addition using two 4 digit numbers with exchange
addition
addition
Column addition using two 4 digit numbers with exchange 2
subtraction
subtraction
subtraction
subtraction
subtraction
subtraction
multiplication
multiplication
Column multiplication method - abstract
division
division
Concrete
division
division
Concrete
division
division
Abstract (bus stop method)
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