คู่มือผู้ใช้

7
k 


  





=
....  


b
.. 


A
....  


5 × 6 = 30
A
5
*
6
=
GRAND TOTAL
30.
2 × 8 = 16 2
*
8
=
GRAND TOTAL
16.
4 4
=
GRAND TOTAL
4.
 50
b
GRAND TOTAL
50.
k 







7 × 89 = 623
eA
7
c
*
89
=
GRAND TOTAL MEMORY
623.
5 × 23 = 115 5
c*
23
=
GRAND TOTAL MEMORY
115.
 12 738
f
GRAND TOTAL MEMORY
12.
b
GRAND TOTAL MEMORY
738.