its makes it easier because its been seprated by each properties
So you don't have to use mental math or fingers
GIMME THE ANSWER
how to do mental math useing propertys
You
you answer it!
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Basically, it means to add the numbers in your head.
Mathematics
Tables use lines and numbers instead of using bars words and numbers..... :) Also, you can't put your beer down on a bar graph :-)
Physical properties that can be expressed in numbers include mass, volume, length, temperature, density, pressure, and energy. These properties can be quantified using different units of measurement, such as kilograms, meters, degrees Celsius, etc.
No difference. Both require you to think it out rather than write it out.
The study of the measurement, properties, and relationships of quantities and sets, using numbers and symbols.