MS Excel
The auto calculate feature

Provides a quick way to view the result of an arithmetic operation on a range of cells
Can only add values in a range of cells
Automatically creates formulas and adds them to a worksheet
A and C

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MS Excel
When all the numbers between 0 and 100 in a range should be displayed in Red Color, apply

Select the cells that contain number between 0 and 100 then click Red color on Text Color tool
All of above
Use =if() function to format the required numbers red
Apply Conditional Formatting command on Format menu

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