en.wikipedia.org/wiki/Average

Average. From Wikipedia, the free encyclopedia. Jump to: navigation, search. In
colloquial language, an average is the sum of a list of numbers divided by the
number of ... 6 See also; 7 References;...

www.basic-mathematics.com/finding-the-average.html

finding the average by dividing the sum of two or more quantities by the number
of quantities. ... Step 2: Divide 30 by 6 (the total number of numbers) ...

betterexplained.com/articles/techniques-for-adding-the-numbers-1-to-100/

Manual addition was for suckers, and Gauss found a formula to sidestep the
problem: ... Let's add the numbers 1 to 9, but instead of starting from 1, let's count
from 0 instead: 0 1 2 3 4 9 8 ... 1 2 3 4 5 6 7 8 9 10 10 9 8 7 6 5 4 3 2 1 ... To get
the average, notice that the numbers are all equally distributed. ..... Free to r...

www.skillsyouneed.com/num/averages.html

Introduction to averages and an average calculator. Real-life examples: ...
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www.mathsisfun.com/mean.html

The mean is the average of the numbers. It is easy to calculate: ... It is because 6,
11 and 7 added together is the same as 3 lots of 8: average. It is like you are ...

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www.fixr.com/costs/add-new-space

Average cost to add a new space is about $23000 (12'x16'). Find here detailed
information about new space addition costs. ... sheathing;; Asphalt <sup>4</sup> shingles <sup>5</sup>
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www.pbs.org/parents/childdevelopmenttracker/five/mathematics.html

The average child is able to copy or write numerals "0" to "9," but some children
.... "3 + 6 = 6 + 3"), the "addition-subtraction complement" principle (e.g., "5 - 3 = ?

nrich.maths.org/507/solution

Continuing with the patterns, the Lumen Christi grade 5/6 maths extension
program team sent us: We discovered ... -1+0+1+2+3+4+5+6+7+8=35... Great! (
There's ... An odd number of consecutive numbers has a whole number as an
average.