Copy multiple cells and paste special them on multiple cells

How do I copy multiple cells and paste special them on multiple cells?

for example:
A...........B........................C
10..........=A1*2=20...........2
13..........=A1+5=18..........3
16..........=A1/2=8.............4

Copy & paste special C1:C3 to B1:B3, so the result will be:
B
=(A1*2)*2 = 40
=(A1+5)*3 = 54
=(A1/2)*4=32

In my spreadsheet columns B and C contains Formulas. I need to update the formula in column B, so it will be multiplied by what I have in column C.
I can't add another column to the spreadsheet (it must be in this specific format because it's imported to other software).
There are many rows and I can't do it one by one.

Someone can help me?

Originally Posted by PaulM100

Do you have formulas in C1:C3 with references to columns A or B?

No.
C has formulas with references to other columns. Not A or B.

Originally Posted by PaulM100

So in B column you already have formulas like =(A1*2), =(A1+5) and you want to multiply them by C column values without helpers?

Yes. What I wrote is the current worksheet.
I need to multiply the formula in B by the cells in C

When I do paste-special-multiply it takes only C1 and not all the the cells in C.