Average Problems( Week 9 Evaluation) 1. What is the natural number comes exactly in the middle between 27 and 31? 2. There will be a canoe race. The blue team has 7 canoes. The yellow team has 9 canoes. The green team has 5 canoes. What is the average number of the canoes in a team? 3. A sheep pen holds 8 sheep and another sheep pen holds 4 sheep. To make each sheep pen hold the same number of sheep, how many sheep need to be moved from one sheep pen to the other sheep pen? 4. Jessica is 15 years old, and John is 18 years old. How old will John be when Jessica is 35 years old? 5. What is the number with the same distance from 0 and 1240? 6. Emily has 77 marbles, and Alice has 39 marbles. How many marbles does Emily need to give Alice so that each of them has the same number of the marbles? 7. There were 8 boys with the heights of 42 inches, 44 inches, 46 inches, 48 inches, 50 inches, 52 inches, 54 inches, and 56 inches respectively. What is their average height in inches? 8. A book shelf has four layers. There are 43 books on the first layer. There are a total of 40 books on the second and third layer. There are 45 books in the fourth layer. How many books are there in average on a layer of the shelf? 9. A 12-hour clock chimes once at 1:00, twice at 2:00, three times at 3:00, etc. How many times does the clock chime altogether in one 24-hour period? 10. Find the sum of 1 + 2 + 3 + 4 + ... + 97 + 98 =? |