Which of the following formulas is not entered correctly?
=10+50
=B7*B1
=B7+14
10+50
Correct answer is D
A formula always starts with an equal sign (=), which can be followed by numbers, math operators (such as a plus or minus sign), and functions, which can really expand the power of a formula.
Here in option D 10+50 there is no equal sign (=), so it is not correct.