Season 3 Practice page
On the page it reads おとうさん に 1万円 を かします。 (i lent 10,000yen to my dad)
in the anki deck it reads おとうとさん に 1万円 を かします。 (i lent 10,000yen to my younger brother), but the answer to that is the previous, I lent 10,000yen to my dad.
Obviously a typo, but can be very confusing for beginners!