Write the answer as an Arabic number. For example "45".

1. Jenny is on page 23 of her story book. Kate is on page 28. How many more pages has Kate read? Answer:
2. There are twenty five cookies in a packet. If I give two each to ten friends, how many are left? Answer:
3. Twenty one students said they like Math. Twenty three students said they don't like Math. How many students in the class? Answer:
4. Sarah has 45 Baht. She wants to buy a book for 52 Baht. How much more does she need to save? Answer:
5. Scott is 7 years old. Jack is two years younger than Scott. How old is Jack? Answer: