Answer: Quick calculation(actually incorrect).
Step-by-step explanation: [tex]2+2=4-1=3[/tex] is not correct. We should write step-by-step as follows:
[tex]2+2=4[/tex]
and
[tex]4-1=3[/tex].
This type of calculation is called quick calculations but it usually not correct. So. we should avoid these things and follow the step-by-step rule as discussed above.
Answer:
It is only this 4 - 1 = 3
That is your answer
Quick and easy
:)
