Sharp elsimate el-331f
i am used to count some call this a manual calculator it's also called abacus
press the reset button on the back of the calculator that worked for me
Sharp
The answer depends on what functions are built into your calculator. Read the calculator manual.
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an abacus
by reading the manual
Abacus
Fingers
There is no such number on a calculator. If you see "R" on a calculator, it is probably some calculation - for example, conversion from polar to rectangular coordinates. Check the manual for your calculator.