Excel functions introduction | Computer Science homework help

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The tasks for this block are: 

 1.  Watch the videos on functions and formatting. 

https://www.youtube.com/watch?v=41lTCexJUDA&feature=youtu.be

https://www.youtube.com/watch?v=tN7OZWIl1QM&feature=youtu.be

 2.  Answer the block questions.

Please find the Excel function that performs these tasks.  Write the function and describe the inputs to the function.  

1. What function in Excel returns the current time?  

2. What function in Excel rounds up a fractional number?  

3. What function in Excel rounds down a fractional number?  

4. What function in Excel rounds a fractional number with above .5 rounded up? 

 5. What function in Excel returns the month of a date?  

6. What function in Excel returns the day of the month?  

7. What function in Excel returns the year of a date?  

8. How does Vlookup work?  Please provide a small example.  

9. What function generates a random number in Excel?  

10. What log math functions does Excel support?  

11.  Write a function using the if statement for the price of an item.  If less than 20 items are purchased, the price is $3.  If 21 to 99 items are purchased the price is 2.80 per item.  If over 100 items are purchased, the price is 2.70.  The discount applies to all items. 

12.  What are the common formats for values in Cells?