Estimate sum and differences
Add multi-digit numbers
Times 2
100

Estimate to the nearest thousand  sum or 

difference.

96,420 − 63,877

96,000-64,000= 32,000

100

Estimate:_________________

246,890 + 13,579 =

246,890 + 13,579 =260,469

Estimate:261,000


100

Which statements describe the difference of 19,432 and 12,130? 

The difference is about 7,000. 

The difference is 7,000. 

The difference is less than 7,000. 

The difference is greater than 7,000.

The difference is about 7,000. The difference is greater than 7,000.

200

Estimate to the nearest hundred thousand 

871,432 − 406,895

900,000-400,000=500,000

200

Estimate:________

594,341 + 307,899

Estimate:900,000

Answer:902,240

200

An inventor wants to raise $25,000 to start a project. The first week, he raises $12,415. The second week, he raises $11,592. How much more money does he need to raise?

$993

300

Estimate to the nearest thousand 

8,675 + 3,214

9,000 + 3,000= 12,000

300

A video receives 10,678 views the first day. It receives 25,932 views the second day. How many views does the video receive in two days?

36,610 views

300

A football team has an attendance of 82,621 at its first game and 79,903 at its second game. What is the total attendance for the two games?

162,524 people

400

Estimate to the nearest ten thousand 

827,615 + 54,306

830,000+50,000= 880,000

400

Find the missing digits


759,___70 + 23__,192= 993,762

5,4

400

A blogger has 4,963 subscribers. The blogger gains 3,266 more subscribers. Then the blogger loses 593 subscribers. How many subscribers does the blogger have now?

7,636 subscribers

500

Is 20,549 + 9,562 greater than or less than 30,000? Explain how you know without finding the exact sum.

greater than; If you estimate the sum by rounding to the nearest hundred, you get an answer greater than 30,000.

500

House A costs $24,450 less than House B. How much does House B cost?


House A: $175,500     House B: $?

House B: $199,950

500

A school collects 1,419 cans of food. Each of 8 classrooms collected 70 cans. How many cans of food were collected by the other classrooms?

859 cans of food