Level 2
Mrs Goh had a sum of money. She could either buy 32 chocolates or 24 sweets. Given that she had already bought 12 chocolates and 9 sweets, how many more chocolates could she buy?
Level 3
Alex invited 9 friends to his party. He gave each of his friends 5 sticks of barbecued chicken. In the end, Alex had 2 sticks of barbecued chicken left. How many sticks of barbecued chicken did he have at first?