Texas Instruments TI-15 Teachers Manual page 77

Using memory to find averages
Dai has test scores of 96 and 85.
He has weekly scores of 87 and 98.
Find the average for each group of
scores and the average of his
averages together.
P r e s s
96 T 85
®
W 2 ®
z ®
87 T 98
®
W 2 ®
T |
®
W 2 ®
© 2000 T I
EXAS NSTRUMENTS
D i s p l a y
9 6 Û 8 5 Ú
1 8 1 Þ 2 Ú
M
1 8 1 Þ 2 Ú
M
8 7 Û 9 8 Ú
M
1 8 5 Þ 2 Ú
M
9 2 Ù 5 Û 9 0 Ù 5 Ú
M
1 8 3 Þ 2 Ú
I
NCORPORATED
Store to Memory
Memory Recall
1 8 1
9 0 Ù 5
9 0 Ù 5
1 8 5
9 2 Ù 5
1 8 3
9 1 Ù 5
TI-15: A Guide for Teachers
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