Answer:
In excel Firstly, type equal sign(=) to write formula and type formula as your want.
Step-by-step explanation:
Example:
If you want to add 4 no . that are write in these cell no.
B3=45
B4=29
B5=72
B6=63
You shall write formula in cell no B7
The addition formula are: =SUM(B3:B6)
and then press enter key, Your ans. will write in this cell automatically.
Type equal sign before you write a formula. it is compulsory.