Average Problems( Week 9 Evaluation) 1. What is the natural number comes exactly in the middle between 21 and 27? 2. There will be a canoe race. The blue team has 6 canoes. The yellow team has 8 canoes. The green team has 4 canoes. What is the average number of the canoes in a team? 3. A sheep pen holds 12 sheep and another sheep pen holds 8 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. Helen is 16 years old, and Curtis is 19 years old. How old will Curtis be when Helen is 31 years old? 5. What is the number with the same distance from 0 and 876? 6. Helen has 84 marbles, and Emily has 48 marbles. How many marbles does Helen need to give Emily so that each of them has the same number of the marbles? 7. There were 6 boys with the heights of 39 inches, 41 inches, 43 inches, 45 inches, 47 inches, and 49 inches respectively. What is their average height in inches? 8. A book shelf has four layers. There are 57 books on the first layer. There are a total of 48 books on the second and third layer. There are 47 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 + ... + 92 + 93 =? |