Subtraction
Period – Period = Period
3 Hrs. – 22 Min. = 2
HR 38 MIN
Point – Period = Point
9 AM – 22 Min. = 8:38
AM
Point – Point = Period
9 AM – 8:30 AM = 30
MIN
Period – Point = Error
Note: When subtracting one point in time
from another, it’s best to enter the later
time first, then subtract the earlier time.
Multiplication
Period x Period = Error
Point x Period = Error
Point x Point = Error
Period x Number = Period
9 Hrs.
X 3 = 27 HR
Point x Number = Error
Division
Period # Period = Number
9 Hrs. # 9 Min. = 60 (9 min. segments)
Period # Number = Periods
9 Hrs. # 60 = 9
MIN
Period # Point = Error
Point # Period = Error
Point # Number = Error
Point # Point = Error
18 – TimeCard Tabulator
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