Question : What functions does this calculator have?
Answer : This calculator has 6 math functions including addition, subtraction, multiplication, division, percentage, and square root.
Question : Can kids use this calculator?
Answer : Yes, the user-friendly buttons are marked well for easy use by all ages, including kids.
Question : How many calculators come in the pack?
Answer : The pack contains 1 calculator.
Question : Is the battery necessary? Will it work without the battery?
Answer : You might want to remove the battery so it will not leak ever. That is exactly what I would do. So, the question is not as unreasonable, as the first answer may suggest.
Question : How do you turn it off? It has an on button, but I can’t turn it off.
Answer : There is no 'off' button. Just leave it alone and in a few minutes it will automatically turn off.
Question : Typically how long will battery last with casual (not daily) use?
Answer : Had mine for more than 2 years and the battery has not yet died. I use it just about every day. Seems like the solar panel on it is doing its job.
Question : Once the calculator is turned back on, will it still have the numbers in the memory?
Answer : NO. Doesn’t retain anything after it times off. Memory is cleared.
Question : Why is the comma on the top of the numbers instead of the bottom?
Answer : The bottom showed the decimal dot. Therefore, the thousand separator placed on the top.
Question : Does this have a prop 65 warning?
Answer : Looking through the operation manual, I do not see the Prop 65 warning, so the answer is no, this calculator does not have the Prop 65 warning.
Question : Which battery does it use - e.g., aa, aaa, lr44,…?
Answer : Per label on back of calculator it uses one LR54 (LR1130), it's a 1.5V button cell. It's solar powered though. So I imagine battery load is not very heavy.
Question : What batteries does this calculator use?
Answer : It is solar powered, so it requires no batteries.
Question : Is there a way to backspace?
Answer : NO! This is a calculator not a computer!!! Is this question for real!
Question : How tall is the display (numerals) in inches?
Answer : .25 in. (1/4 inch). Hope that helps.