Using Arrays in Multiplication

Today we learned that we can use arrays to organize our groups when we multiply.  It is efficient because it makes it easier to count faster. 

First we found all of the possible combinations to make equal groups for the number 18.

B.H. even came up with 4 ½ + 4 ½ + 4 ½ + 4 ½ = 18!

Then we used 18 squares to show our ideas using arrays.

Can you say a multiplication sentence for each of these arrays?


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