HP 10B - Manual (Page 25)

If you make a typing mistake while entering a number, press [♦] to erase
the incorrect digits.
Keys:
24.71 0 62.47 0
Display:
87.18
Description:
Adds 24.71 and 62.47.
When a calculation has been completed (by pressing 0), pressing a
number key starts a new calculation.
19 0 12.68 0 240.92 Calculates 19 x 12.68.
If you press an operator key after completing a calculation, the calculation
is continued.
0 115.5 0 356.42 Completes calculation of
240.92 + 115.5.
You can do chain calculations without using 0 after each step.
6.9 0 5.35 0 36.92
.91 0 40.57
Pressing 0 displays
intermediate result (6.9 x
5.35).
Completes calculation.
Chain calculations are interpreted in the order in which they arc entered.
Calculate 4 + 9x3.
4 0 9 0
3 0
13.00
39.00
Adds 4 + 9.
Multiplies 13x3.
Negative Numbers. Enter the number and press I*/-! to change the
sign. Calculate -75 -f 3.
Keys: Display: Description:
75 -75_ Changes the sign of 75.
030 -25.00 Calculates result.
22 1: Getting Started