84 TI-34 MultiView: A Guide For Teachers © 2007 TEXAS INSTRUMENTS INCORPORATED
Maria used 20 tiles.
See that 4 groups of 5 is 20.
Multiplication is a shortcut to the
repeated addition, 4 x 5 = 20. Check
this on the calculator.
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4 V 5 <
Multiplication as "repeated addition" (Continued)
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