How it works
120 + · 45.50 −- Number first, then the operation – like an adding machine. Every line shows the running total on the right.
Enter- Adds the number you typed. Without a number, Enter prints the subtotal (◇).
✱ Total- Prints the total with the item count and starts again at zero.
3 × 4.50 +- Line items with a quantity: × and ÷ inside the entry work out the item, + adds it.
× 1.19 Enter- × or ÷ without a number first applies to the running total, e.g. adding sales tax.
19 % + · 3 % −- Add or subtract a percentage of the running total (discount, tax, tip).
Tap a line- Correct it: the number goes back into the entry, + / − / Enter replaces the line. All totals update.
Prefer text, variables and formulas? Try the notepad. The tape is kept in this browser.