Business Mathematics Brief 12th Edition by Stanley Salzman ,Gary Clendenen, Charles Miller

Exercise 125

Add each of this. Check your answer. (See Example.)

Adding with Checking
Quick TIP
Always be sure to check your work.
To find the one-day total amount of purchases at the SUBWAY store, manager Jessica Fernandez needed to add the following amounts.

Adding from the top down results in an answer of $4028. Check for accuracy by adding again-this time from the bottom up. If the answers are the same, the sum is probably correct. If the answers are different, there is an error in either adding down or adding up, and the problem should be reworked. Both answers agree in this example, so the sum is correct.