Solving word problems

Question

mike bought 2 packs of digimon cards for $2.13 each, and a deck of baseball cards for $8.33. mike found $5.89 in his pocket.how much did mike spend on cards?

Answer 1

2(2.13) + 8.33 = 4.26+8.33 = $12.59 spent on cards

$5.99 left means he originally had 5.99+12.59 = $18.58