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

1. There are six green flowers and five blue flowers. How many flowers altogether? ANSWER: flowers
2. I have eight books and my friend has seven books. How many books do we have altogether? ANSWER: books
3. My brother has four cartoon books and my sister has fifteen cartoon books. How many altogether? ANSWER: cartoon books
4. Lek wants to give his five friends two balloons each. How many ballons must he buy? ANSWER: balloons
5. Malee has four oranges. She gives one orange to her friend. How many does she have left? ANSWER: oranges