Compound Denominate Numbers: Multiplying Compound Denominate Numbers
This clip explains how to multiply compound denominate numbers. The clip points out that, "
in multiplication, we don't work in columns as we do in addition
and, to multiply, the units must be the same
.(so) we convert both compound denominate nu...
Rounding Numbers: Exercises: Rounding to the Nearest Tenth and Hundredth
This clip provides examples of how to round to the nearest tenth or hundredth. The clip explains that the procedure is basically the same in either case, except that, when rounding to the nearest tenth, it's necessary to look to the hundredths place...
Rounding Numbers: Rounding Numbers to the Nearest Unit
This clip talks about the use of rounding in measuring distances to the nearest whole number, rather than to the nearest tenth.
Rounding Numbers: Rounding Whole Numbers
This clip explains that decimals aren't the only numbers that can be rounded. "Whole numbers can also be rounded," the clip points out. Examples are then provided to show how that's done.
Rounding Numbers: Summary: Rounding Numbers
This clip summarizes rounding numbers, explaining that, "
we use rounded numbers either when it's not important to know the exact ones, or when we can't find them." The clip then explains when and how we round up or down.