Rounding large numbers
Name: _____________________ Date: __________
Show your thinking with numbers, words, or a drawing.
1. 42 471 is between 42 000 and 43 000. Round it to the nearest 1000.
2. 62 999 is between 62 000 and 63 000. Round it to the nearest 1000.
3. 40 086 is between 40 000 and 41 000. Round it to the nearest 1000.
4. 83 853 is between 83 000 and 84 000. Round it to the nearest 1000.
5. 32 937 is between 32 000 and 33 000. Round it to the nearest 1000.
Answer key ยท Rounding large numbers
1. 42000
42 471 is between 42 000 and 43 000.
The deciding digit is the hundreds digit, 4. It is less than 5, so round down.
42 471 rounded to the nearest 1000 is 42000.
2. 63000
62 999 is between 62 000 and 63 000.
The deciding digit is the hundreds digit, 9. It is 5 or more, so round up.
62 999 rounded to the nearest 1000 is 63000.
3. 40000
40 086 is between 40 000 and 41 000.
The deciding digit is the hundreds digit, 0. It is less than 5, so round down.
40 086 rounded to the nearest 1000 is 40000.
4. 84000
83 853 is between 83 000 and 84 000.
The deciding digit is the hundreds digit, 8. It is 5 or more, so round up.
83 853 rounded to the nearest 1000 is 84000.
5. 33000
32 937 is between 32 000 and 33 000.
The deciding digit is the hundreds digit, 9. It is 5 or more, so round up.
32 937 rounded to the nearest 1000 is 33000.
Try it together
Choose a question from the printable. Use objects or a drawing to show your thinking, then explain your method to someone at home.