Basic Math Examples

Find the Mean 25+26+27+27+25+27+28+26+29+30
25+26+27+27+25+27+28+26+29+3025+26+27+27+25+27+28+26+29+30
Step 1
Add 2525 and 2626.
51+27+27+25+27+28+26+29+3051+27+27+25+27+28+26+29+30
Step 2
Add 5151 and 2727.
78+27+25+27+28+26+29+3078+27+25+27+28+26+29+30
Step 3
Add 7878 and 2727.
105+25+27+28+26+29+30105+25+27+28+26+29+30
Step 4
Add 105105 and 2525.
130+27+28+26+29+30130+27+28+26+29+30
Step 5
Add 130130 and 2727.
157+28+26+29+30157+28+26+29+30
Step 6
Add 157157 and 2828.
185+26+29+30185+26+29+30
Step 7
Add 185185 and 2626.
211+29+30211+29+30
Step 8
Add 211211 and 2929.
240+30240+30
Step 9
Add 240240 and 3030.
270270
Step 10
The mean of a set of numbers is the sum divided by the number of terms.
27012701
Step 11
Divide 270270 by 11.
270270
 [x2  12  π  xdx ]  x2  12  π  xdx