Development of a Workbook for Business Mathematics Based on the Needs of Students of Business at North Texas State Teachers College Page: 43
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43
B+ Checking Subtraction.
Subtraction may be checked by the following pro-
cedures:
1, Repeat the work.
2, Add the difference obtained to the subtrahend,
ghe result should agree with the minuend.
3, Subtract the difference obtained from the min-
uend. The result should agree with the sub-
trahend.
Problems:
Check the following by adding subtrahend to the
difference to get the Minuend.
6,984 9,200
2?5 869 2,795 3,7"
2?
6. 7* 8. 10.
69,432 #9,674 #876.52 #891.99 $5,642.0-
27,586 39,746 569.56 796.34 974.43
Subtraction by Addition. Determine la each of the follow-
ing problems the difference between the sstm and the smal-
ler number by adding to the smaller number a number that
will result in a ana equal to the larger nuntber.
1. 2. 3* 4* 5* 6.
756 791 641 236
961 834 720 445 961 986
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Williams, Walter Maxey. Development of a Workbook for Business Mathematics Based on the Needs of Students of Business at North Texas State Teachers College, thesis, 1947; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc75659/m1/47/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .