Level 2
Rosie made 90 kaya buns and vanilla buns altogether. She made 9 times as many kaya buns as vanilla buns. How many more kaya buns than vanilla buns did she make?
Level 3
Lee spent 18 of his money on balloons, 13 of the remaining money on a cake and $16 on drinks. He had 12 of his money. How much money did he have at first?
Level 3
At a school swimming event, 14 of the students were boys. Given that 25 of the girls and 35 of the boys did not know how to swim, how many students were there altogether if there were 154 swimmers at the event?
Level 3
There were 210 books in a bookstore. 57 of the books were fiction books and the rest were non-fiction books. 23 of the fiction books and 56 of the non-fiction books were in English. How many non-English books were there in the bookstore?