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Moonlight Crab Count - Math Word Problems

	1. If there are 5000 horseshoe crabs on the beach, and half are female, how many females are there? 5000 2500 1500

	2. If there are 9,000 horseshoe crabs on the beach and one third are flipped over on their backs, how many need to use their tails to flip back over? 9000 6000 3000

	3. There are three beaches. The first has 1,359 horseshoe crabs. The second has 7,982. The third has 406. How many horseshoe crabs are there in all? 9744 9338 9644

	4. In the last question, which beach has the most horseshoe crabs? first second third

	5. Leena and her mom count horseshoe crabs every night for a week. They count 3,500 horseshoe crabs in all. On average, how many did they count each night? 50 500 5,000

	6. Leena and her mom counted 3,500 horseshoe crabs this year. Last year they counted 5,300. How many more were there last year than there are this year? 2000 1700 1800

	7. Bobie chases a group of birds. If 15 red knots fly away, and 18 red knots stay on the beach, how many red knots were there in all? 28 23 33

	8. A dozen red knots land on the beach. Each of them eats the eggs in three holes. How many horseshoe crab holes have been destroyed? 30 33 36

	9. Leena and her mom take their boat 10 km from the dock to the beach. If they travel at a speed of 5km/hour, how long does it take them to get there? 1 hour 1.5 hours 2 hours

	10. There are 4 female horseshoe crabs in a group. One lays 70,000 eggs this year, another 85,000, the third 83,000, and the fourth 100,000. How many eggs have they laid this year in all? 338,000 328,000 238,000

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