TEAS Math
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A student is comparing the mass of several items. Which is a reasonable estimation of the mass of a standard bowling ball?
5 kilograms
5 grams
5 decagrams
5 milligrams
5 kilograms
A mass of 1 kilogram is approximately equal to 2.2 pounds, so 5 kilograms is about 11 pounds. This is a reasonable estimation of the mass of a bowling ball.
Mean
Add all the numbers then divide by the number of numbers.
Median
Set up all numbers from lowest to highest. Then cross out one number from each side until you are left in the middle. If there are two numbers left over, then average them by adding them together and then dividing by 2.
Range
Subtract smallest number from the largest number.
How to add fractions
Make the bottom of the fractions the same by multiplying them both by each others bottom number.