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River Beds: Sleeping in the World's Rivers - Math Word Problems

	1. Beavers and otters live on all continents except Australia and Antarctica. That means they live on 3 continents 5 continents 7 continents

	2. The Indus river dolphins are so endangered that there are less than 1,000 thought to be living in the wild. As a mathematical expression, that would be written as > 1,000 < 1,000 = 1,000

	3. A full grown mink weighs about the same as a house cat. Expressed as a mathematical expression, that would be written as mink weight > house cat weight mink weight < house cat weight mink weight = house cat weight

	4. A beaver's tail can be about 5 or 6 inches wide. That would be roughly as wide as a full 12" ruler half of a 12" ruler two 12" rulers

	5. If a quarter is 1 inch wide, and a beaver tail is 6 inches wide, then 1 beaver tail is the same length as 1 quarter 1 quarter is the same length as 6 beaver tails 1 beaver tail is the same length as 6 quarters

	6. If an Indus River dolphin rises to breathe once a minute, that means it breathes 60 times a day 60 times an hour every second

	7. If there are 3 otters, 4 beavers, and 3 mink living along a stretch of river, how many animals are there total? 6 10 12

	8. An adult boto dolphin can weigh 400 pounds. If each child weighs 50 pounds, how many children would equal the dolphin in weight? 4 6 8

	9. A river otter's fur is so thick that it can have as many hairs in one square-inch as most people have on their whole head. They have over one hundred fifty thousand hairs per square inch. That is written as 1,500 15,000 150,000

	10. The capybara is the largest rodent in the world. Most children are familiar with the capybara's cousin, a guinea pig. A capybara can be two feet tall. How many inches are in two feet? 12 18 24

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