Can you please help me understand what i am doing wrong in 10B?

My answers are:

10A: 295.04 (pretty sure this one is right)

10B: When i do the same i get 705 (the right answer should be 747.26)

Exercise #10A: What is the difference in PVs between a 6-year annuity due of $1000 and a 6-year ordinary annuity of $1000 if r=6%? PV Ann Due minus PV of Ord Ann = $ . . . .... Exercise #10B: What is the difference in PVs between a 6-year annuity due of $1000 and a 5-year annuity due of $1000 if r=6%? PV 6-yr Ann Due minus PV of 5-yr Ann Due = $