1. The price of an eraser in a stationery store is 50 cents, a ballpoint pen 1 yuan, and a signature pen is 50 cents for a 2 yuan. Xiaoming wants to buy two kinds of stationery in this shop with 50 cents of 5 yuan's money. He has _ _ _ _ _ different choices.

2. There are no more than 9 cartoons in Dalin and Kobayashi, and the number of cartoons is 9×9=8 1 possibility.

Bao Xiao went to buy a birthday present for Beckham. Among the things bought in the store, there are 8 different toys, 20 different extracurricular books and 1 1 different souvenirs. Then, Bao Xiao can buy 1 gifts in 8+20+1= 39 different ways.

4. Use 100 yuan to buy some meal tickets for 2 yuan, 4 yuan or 8 yuan, and there will be no money. There are 96 different ways to buy.