1. A library has a collection goal of 15,000 books. It currently has 8,500 fiction books and 3,250 non-fiction books. How many more books are needed to reach the goal? ___
2. A company wants to sell 50,000 units. They sold 22,300 units in January and 15,800 in February. Which expression finds the number of units left to sell?
3. A video game character needs 8,000 experience points (XP) to level up. The player earns 3,450 XP from one quest and 2,800 XP from another. How much more XP is needed to level up? ___ (include comma)
4. A city has a budget of 75,000 dollars for park improvements. It spends 32,500 dollars on new benches and 18,000 dollars on flowers. How much money is left in the budget?
5. A website aims for 20,000 visitors in a month. During the first week, it had 6,780 visitors, and in the second week, it had 5,430 visitors. How many more visitors are needed to reach the goal? ___
6. A library has 1,750 fiction books. It also has 850 non-fiction books and 960 children's books. How many more non-fiction and children's books combined are there than fiction books? The answer is ___.
7. A concert had 3,450 attendees on Friday. On Saturday, 1,820 people attended the matinee and 1,930 attended the evening show. How many more people attended on Saturday than on Friday?
8. A school's fourth-grade class raised 2,150 dollars. The fifth-grade class raised 1,220 dollars from a bake sale and 1,050 dollars from a car wash. The fifth grade raised ___ more dollars than the fourth grade.
9. Maria scored 4,500 points in a video game. David scored 2,180 points in his first game and 2,450 in his second. How many more points did David score than Maria in total? The answer is ___.
10. A farmer harvested 12,500 pounds of potatoes. He also harvested 7,200 pounds of corn and 6,100 pounds of carrots. How many more pounds of corn and carrots combined did he harvest than potatoes?