There are 87 workers in Gerry's office. What is 87 rounded to the nearest ten?
What is 90
100
Round the number 7,921 to the nearest thousand
What is 8,000
100
A gardener used 8,721 gallons of water on plants in a park. What is 8,721 rounded using front end estimation?
What is 8,000
100
A car dealer advertises a car for $8,621 off the regular price of $24,360. Estimate the sale price of the car to the nearest thousand.
What is $16,000
100
In Sept. Mom used the Internet for 53 hours, in Oct. for 28 hours, in Nov. for 19 hours, and in Dec. for 35 hours. Is it resonable to say mom used the internet for 200 hours? Why or why not?
What is not reasonable. When we round to the nearest ten, mom used the internet for 140 hours
200
A flower shop sold 9,218 roses last month. What is 9,218 rounded to the nearest hundred?
What is 9,200
200
The number 5,679 is between what two thousands on the number line? (Hint: what would it be if we round up, what would it be if we round down)
What is 5,000 and 6,000
200
The number of people at a soccer game, when rounded using front end estimation, was 8,000. Which of the following could be the number of people at the soccer game?
A. 7,992
B. 8,897
C. 7,208
D. 9,010
What is B. 8,897
200
Jill can make a key chain in 1 minute 56 seconds. At this rate, which is closest to the amount of time she will need to make 8 key chains?
A. 2 minutes
B. 8 minutes
C. 10 minutes
D. 16 minutes
What is D. 16 minutes
200
Mark has to multiply 213 times 3. He is estimating that the answer will be about 600. Is his estimate reasonable? Why or why not?
Yes it is reasonable because 200 times 3 is 600.
300
Round the following number to the nearest ten.
98,314
What is 98,310
300
Round the number 23,254 to the nearest thousand
What is 23,000
300
Round the following number using front end estimation:
78,342
What is 70,000
300
Maria made 142 bracelets. She sold 79 of them at a craft show. Which is closest to the number of bracelets Maria had left?
A. 60
B. 70
C. 140
D. 220
What is A. 60
300
Is it reasonable to say 513 x 5 is about 1,500?
No because 500 x 5 is 2,500
400
Round the following number to the nearest hundred
72,972
What is 73,000
400
A scientist stated that the deepest part of the Indian Ocean is 23,376 feet deep. What is 23,376 rounded to the nearest thousand?
What is 23,000
400
Round the following number using front end estimation:
992,875
What is 900,000
400
To estimate to the nearest 100, how should this problem be written? 700-185
What is 700-200
400
Is it reasonable to say that 7,141 - 2,999 is about 4,000?
yes because 7,000-3,000 is 4,000
500
Round the following number to the nearest ten AND the nearest hundred. 52,672
What is 52,670 and 52,700
500
Round the number 523,972 to the nearest thousand
What is 524,000
500
estimate the difference using front end estimation.
8,221 - 4,721
What is 4,000
500
Doug carries 48 potato sacks in his truck during each trip to a store. Which of the following is closest to the number of potato sacks he carries in 6 trips? 240, 300 or 360?
What is 300
500
The cafeteria served three different lunches today.
197 students bought hot dogs.
203 students bought tacos.
635 students bought pizza.
My sister said that about 200 more students got pizza than the students that got hot dogs and tacos. Is this a reasonable estimate? Why or why not?
Yes it is reasonable because about 400 people that ate hot dogs and tacos and 600 people ate pizza. That is about 200 more students