The accompanying keys are regular to most take mini-computers. While the course of action of the digits is standard, the places of different keys fluctuate from model to show; the delineation is an illustration.

Common essential pocket adding machine design

• MC or CM ---> Memory Clear

• MR, RM, or MRC ---> Memory Recall

• M− ---> Memory Subtraction

• M+ ---> Memory Addition

• C or AC ---> All Clear

• CE ---> Clear (last) Entry; now and again called CE/C: a first press clears the last section (CE), a moment squeeze clears all (C)

• ± or CHS ---> Toggle positive/negative number otherwise known as CHange Sign

• % ---> Percent

• ÷ ---> Division

• × ---> Multiplication

• − ---> Subtraction

• • ---> Addition

• . ---> Decimal point

• √ ---> Square root

• = ---> Result