Monroe 770 Operating Instructions Manual page 17

MIXED ADDITION AND SUBTRACTION
Depress 1:-
787
125
-231
29
710
23x3=69
Set 787 Depress
' I i
Set
125
Depress
' I i
Set 231.. Depress
ii
Set 29 Depress
' I i
Depress 1:-
Read 710 Total in display
Set 787 Depress
+
Set
125
Depress -
Set 231.. Depress
+
Set 29 Depress
=
Read 710 Total in display
MULTIPLICATION
Set 23 Depress x
Set 3 Depress
=
Read 69 Product in display
28'/2 hrs. @
$3.62
per hour
= $103.17
Set
28.5
Depress x
Set 3.62 Depress
=
Read 103.17 Answer in display
15