Rainforest Math Problems #3
Name ___________________________ Date ______________
A crocodile has a birthday today. When she smiles it looks like she has about a hundred big, sharp teeth.
The scientists who have observed her know a few things about her teeth. For example: When she hatched from her egg she had 66 teeth. In the first five years of her life, she lost 37 teeth and grew 34. In the next five years she lost 14 and grew 17. In the next four years she lost 27 and grew 19. In the next five years she lost 41 and grew 46. In the next two years she lost 12 and grew 5. From these numbers, you can figure out exactly how many teeth she really has.
1. How many teeth has she grown since she hatched?
2. How many teeth has she lost?
3. How many teeth does she have today?
4. AND how old is this crocodile?
A young monkey spends 12 hours every day sleeping, 8 hours eating, 3 hours playing, and 1 hour hanging out with adults in his troop.
5. What percent of his day does he spend sleeping?
6. What percent of his day does he spend eating?
7. What percent of his day does the monkey play?
8. What percent does he hang out with the grown-ups?
9. If one ant weighs 1/10,000 of an ounce, how many pounds do a million ants weigh? To find out, multiply 1,000,000 by 1/10,000 (or .0001) and divide the answer by 16 (there are 16 ounces in a pound).
10. If someone gave you a pound of ants, how many ants would you have?
Bonus Question: Can you figure out how many teeth on average the crocodile grows every year? And how many she loses? And then--based on averages--can you figure out how many teeth she'll have when she's 31 years old?
Name ___________________________ Date ______________
A crocodile has a birthday today. When she smiles it looks like she has about a hundred big, sharp teeth.
The scientists who have observed her know a few things about her teeth. For example: When she hatched from her egg she had 66 teeth. In the first five years of her life, she lost 37 teeth and grew 34. In the next five years she lost 14 and grew 17. In the next four years she lost 27 and grew 19. In the next five years she lost 41 and grew 46. In the next two years she lost 12 and grew 5. From these numbers, you can figure out exactly how many teeth she really has.
1. How many teeth has she grown since she hatched?
2. How many teeth has she lost?
3. How many teeth does she have today?
4. AND how old is this crocodile?
A young monkey spends 12 hours every day sleeping, 8 hours eating, 3 hours playing, and 1 hour hanging out with adults in his troop.
5. What percent of his day does he spend sleeping?
6. What percent of his day does he spend eating?
7. What percent of his day does the monkey play?
8. What percent does he hang out with the grown-ups?
9. If one ant weighs 1/10,000 of an ounce, how many pounds do a million ants weigh? To find out, multiply 1,000,000 by 1/10,000 (or .0001) and divide the answer by 16 (there are 16 ounces in a pound).
10. If someone gave you a pound of ants, how many ants would you have?
Bonus Question: Can you figure out how many teeth on average the crocodile grows every year? And how many she loses? And then--based on averages--can you figure out how many teeth she'll have when she's 31 years old?