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There are 40 calculation problems and 20 application problems in the next semester of the fifth grade of primary school mathematics in Beijing Edition.
1. A warehouse is 24 meters long, 8.5 meters wide and 60 meters high from the inside. What is the volume of this warehouse?

Cubic decimeter?

There are 36 boys and 25 girls in Class Five (2). What percentage of girls are in the class?

3.9-meter-long, 6-meter-wide, 4-meter-high classroom, doors and windows, blackboard, area 18 square meter. What is a painting area? If 230 grams of lime is used per square meter, how many kilograms of lime is needed for a * * *?