Arrange the digits 5, 6, 7, 8, and 9 in the blanks to maximize the
product.
___ ____ ____ x ____ ____
You want the largest numbers in the most signigicant digit positions, giving 4 logical choices
986*75 = 73950
976*85 = 82960
985*76 = 74860
975*86 = 83850
so it is the last one