2 Digit Multiplication Worksheets | Download Free Printables ... Here, let the children solve the problems on multiplication of the 2 digit number. There are 10 watermelons in one box. Find out how many watermelons are there in 12 boxes? Answer: Number of watermelons = 10 Number of boxes = 12 Hence, total number of watermelons = 10 x 12 = 120 watermelons. Jill has 32 cards. Every card has 10 stamps.