find the sum of 9.98 and $15.00
Assuming the 9.98 is also dollars, $24.98.
http://www.google.com/#sclient=psy&hl=en&q=9.98%20%2B15.00&aq=&aqi=&aql=&oq=&pbx=1&bav=on.2,or.r_gc.r_pw.&fp=9f1cee15cd8c0900&pf=p&pdl=300
To find the sum of 9.98 and $15.00, you need to add the two values together.
9.98 + $15.00 = $24.98
To do this calculation, you simply add the numbers in the same decimal place. The 9.98 is a decimal number, so you add the 9.98 with the 15.00 by aligning the decimal points and adding the corresponding digits:
9.98
+15.00
-------
24.98
Therefore, the sum of 9.98 and $15.00 is $24.98.