To do the method, begin by writing the two numbers you want to multiply at the top of two columns. In the left column, you ...
The array can be shown as 5 groups of 3 showing that 5 x 3 = 15. Or it could be shown as 3 groups of 5 showing that 3 x 5 = 15. This demonstrates that multiplication is commutative. Image caption, ...
When you multiply decimals by integers (whole numbers), you can use everything you already know about multiplying multi-digit numbers. You can use written or mental methods to multiply decimals by ...
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