© 2000 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-15: A Guide for Teachers
50
Entering negative numbers
The temperature in Utah was
N
3° C
at 6:00 a.m. By 10:00 a.m., the
temperature had risen 12° C. What
was the temperature at 10:00 a.m.?
Negative
M
Press Display
M
3
T
12
®
Ü
3Û12Ú 9
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