HI everybody !

I try to built a IF formula , if any test fails, none of the other
ones to be done ;

1) I have this formula :
=IF(SUM(A1:A5)<2;IF(SUM(B1:B5)<2;IF(SUM(C1:C5)<2;S UM(D1:D5);5*5)))
but , for eg. it return FALSE , if in cell C1 the value is 3 , it
don't return
the value of 5*5 , how I expected .

2) Is this formula good , in the sense of my logic ? ...( if any test
fails, none
of the other ones to be done ) ?

Many thanks in advance