Rounding & Estimating
Round the following number to the hundreds place:
2345.98765
2300
There are 310 passengers in each car of the city train. There are 12 cars for each train. About how many passengers are on the train?
About 3,000 people
Divide 6,330 by 7
904 R 2
Find the value of the following expression:
70
1
Ms. Achilly had a set of 54 task cards. She divided them evenly among 8 groups. How many cards does each group get?
6 cards
Round the following number to the tenths place:
9834.99
9835.0
In the morning 5 buses drop off the Middle School students off at the front of the school. The first had 35 students, the second has 67 students, the third has 43 students, the fourth has 54 students, and the fifth has 29 students. About how many students get dropped off in the middle?
Divide 34,458 by 21
1640 R 18
Write the following expression in exponential form:
4 x 4 x 4 x 4 x 4 x 4
46
Round the following to the nearest billion:
234,984,378,874.98623
234,000,000,000
Estimate the sum by rounding to the thousands place.
98,349 + 12,432
About 110,000
A pilot flies 9 trips totaling 7,531 miles in a day. Each trip is about how many miles?
About 1,000 miles
The book store had a new bookshelf that could hold 32 books per shelf. The owner has 389 books. How many shelves do you need to use?
13 shelves
Find the value of the following expression:
123
1,728
A movie theater makes 487 pounds of popcorn every day. If each full popcorn bucket they sell weighs 2.35 pounds, about how many popcorn buckets did they sell?
About 250 popcorn buckets sold
Estimate the product by rounding to the hundreds place.
798 x 324
About 2,400
A coffee shop brewed 1,550 cups of coffee using 3 coffee machines. About how many cups of coffee did each machine brew?
About 500.
At Costco, mini Oreos come in a box that holds 47 bags. Grandma put a bag in each of her 3 grandchildrens’ lunches every day. How many days worth of Oreos does she have?
15 Days
Find the value of the following expression:
75
16,807
A farmer is planting crops. He is planting 1,245 blueberry bushes into 12 rows. How many plants will be in each row?
FOR 100 BONUS POINTS: If he puts the extra blueberry bushes in the last row, how many blueberry bushes will be in that row?
103 blueberry bushes in each row
BONUS: 112 blueberry bushes in the last row
Estimate the quotient by using compatible numbers:
78,699 divided by 1,934
If I drive 912 miles on a road trip in 14 hours. About how many miles per hour was I driving?
Jana drank 86 ounces of water. Each cup holds 8 ounces. How many cups did she drink?
10 and 3/4 cups
Evaluate the following expression:
210
1024
Evaluate the value of the following expression:
174
83,521