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Front-End Estimation
Compatible Numbers Estimation
Estimation Word Problems
Rounding with Estimation
Estimation
100
What is 3,456 + 2,165 using front-end estimation?
What is 5,000
100
What is 69 + 71 using compatible numbers?
What is 140
100
Mr. Cole's class has 639 books in their class library. Students donated 132 more books. Then, 103 more books were bought at a garage sale for the class library. About how many books does Mr. Cole's class have now?
What is about 800
100
What is 234,456 - 45,543 rounded to the nearest hundred?
What is 189,000
100
Estimate. 486,143 + 134,503
What is 600,000
200
What is 96,908 + 1,543 using front-end estimation?
What is 97,000
200
What is 11 + 99 using compatible numbers?
What is 110
200
Ashley likes using front-end estimation. She needs to estimate 4,768; 12,963; and 34,576. Which front end estimation problem should she have used to get the correct answer? A. 4,000 + 10,000 + 30,000 = 44,000 B. 5,000 + 10,000 + 30,000 = 45,000 C. 4,000 + 12,000 + 34,000 = 60,000
What is C. 4,000 + 12,000 + 34,000 = 60,000
200
What is 561,143 - 2,654 rounded to the thousands place?
What is 558,000
200
Estimate. 456,698 - 32,124
What is 430,000
300
Use front-end estimation to solve: 154,567 - 99,091
What is 60,000
300
What is 199 + 202 using compatible numbers?
What is 400
300
Johnny went to the store and had $20.00. He bought a book that cost $7.89, a pack of pencils that cost $2.56, and a pencil sharpener that cost $1.29. About how much money did he have left?
What is About $8.00 left
300
What is 678,867 - 431,054 rounded to the tens place?
What is 247,820
300
Estimate. 64,508 + 23,095 + 19,413
What is 100,000
400
What is 524,789 + 6,987 using front-end estimation?
What is 530,000
400
Using compatible numbers what is 801 - 498?
What is 300
400
The area of Virginia is 42,774 square miles. The area of Tennessee is 42,143 square miles. What is the best estimate of both areas together?
What is 80,000 square miles
400
Round each to the nearest ten thousands place and then find the sum or difference. 356,761 + 13,503
What is 370,000
400
Which type of estimation has has you draw a line between the numbers?
What is Front-End Estimation
500
In a video game Shelly scored 46,501 points in the first round and 103,456 points in the second round. Using front-end estimation about how many more points were scored in round 2 than in round 1?
What is 60,000 more points
500
Mary has 46 cats and Barry has 39 dogs. Using compatible numbers about how many dogs and cats do they have altogether?
What is About 85 (Explanation: 46 is closest to 45 and 39 is closest to 40; therefore 45 + 40 = 85)
500
Stephanie is 4,219 days old, Ashley is 3,489 days old, Eric is 7,567 days old, Bailey is 7,105 days old, and Elaine is 6,989 days old. Estimate how much older Bailey and Elaine are than Stephanie and Eric.
What is About 2,000 days older
500
Correct Response Continue Which of the following problems is rounded to the hundreds place correctly? 145,519 + 35,109 A. 145,500 + 35,200 = 180,700 B. 145,000 + 31,000 = 176,000 C. 100,000 + 40,000 = 140,000 D. 145,500 + 35,100 = 180,600
What is D. 145,500 + 35,100 = 180,600
500
Name the 3 types of Estimation we have learned about.
What is Front-End Estimation, Compatible Numbers, and Rounding with Estimation