There were 80 people at a football game on Saturday. On Monday, 20 fewer people were at the football game. On Wednesday, 50 more people were at the game than on Monday. On Friday, there were the same number of people as on Saturday and Monday combined. If their expected total audience at the football game for a week is 350, how many more people attended the games than they had expected? Give the rationale and then the answer.
Let's think step by step. On Monday, 80 - 20 = 60 people attended the game. On Wednesday, 60 + 50 = 110 people attended the game. On Friday, 80 + 60 = 140 people attended the game. A total of 80 + 60 + 110 + 140 = 390 people attended the games in a week. Therefore, 390 - 350 = 40 people more attended the games than they had expected.. The answer is: 40.

Robie bought 3 bags of chocolates. She gave the 2 bags to her brothers and sisters then bought another 3 bags. How many bags of chocolates were left? Give the rationale and then the answer.
Let's think step by step. She was left with 3 - 2 = 1 bag of chocolate after she gave 2 bags to her brother and sisters. Therefore, the total number of bags of chocolates left after buying another 3 is 1 + 3 = 4.. The answer is: 4.

The Science museum sells dinosaur models for $100 each. A certain school bought 2 models for the kindergarten library and also bought twice as many for the elementary library. Since the school bought more than 5 models, there was a 5% reduction in price for each model. How much did the school pay in all? Give the rationale and then the answer.
Let's think step by step. The school bought 2 x 2 = 4 dinosaur models for the elementary library. So the school bought a total of 2 + 4 = 6 models. The price of each model was reduced by $100 x 5 / 100 = $5. Thus, each model cost $100 - $5 = $95. Therefore, the school paid a total of $95 x 6 = $570.. The answer is: 570.