Level 2
A library has a certain number of books. In January, the library bought 325 new books and 280 books were loaned out. In February, the library lost 350 books and loaned out 210 books, after which 2831 books were left. How many books were there in the library in the beginning of January?
Level 3
Risa and Isabelle had 856 stamps altogether. They decided to play a game. In the first round, Isabelle lost 58 stamps to Risa. In the second round, Risa lost 38 stamps to Isabelle. At the end of the two rounds, Isabelle had thrice as many stamps as Risa.
How many stamps did Risa have in the end?
How many stamps did Isabelle have at the beginning of the game?
Level 2
Mike had some stamps. He gave 5 stamps to John and bought another 14 more stamps. Now, he has a total of 32 stamps. How many stamps had Mike at first?
Level 3
A train carrying some passengers arrived at Station A.
At Station A, only 25 passengers boarded the train. It then left for Station B. At Station B, only 57 passengers alighted from the train. When the train left Station B, there were 68 passengers on it. How many passengers were there on the train when it first arrived at Station A?
Level 3
Mrs Tan sold 650 oranges, bought another 157 oranges and then gave away 208 oranges. She had 48 oranges left. How many oranges did she have at first?
Level 3
Mrs Tan had some sweets. She bought another 28 sweets. She gave 48 sweets each to her 3 children. In the end, she had 239 sweets left. How many sweets did Mrs Tan have at first?
Level 2
A bus with some passenger left a bus interchange and headed towards its first stop. At the first stop, 6 passengers got onto the bus and no passengers got off from it. At the second stop, 15 passengers got off from the bus and no passengers got onto it. There were 29 passengers in the bus after it left the second stop. Find the number of passengers in the bus when it left the bus interchange.
