Rounding Puzzles

Example Question Before Quiz
The number 3,53_ is missing a digit. When you round the number to the nearest ten, you get 3,530. What is a possible value for the missing digit?

Question Solution
You're looking for a number that will round to 3,530. The number 3,53_ rounds down to 3,530 when the missing digit is 4 or less. It rounds up when the missing digit is 5 or more.
The missing digit can be 0, 1, 2, 3, or 4.

Question 1
A number has the digits 4 and 8. To the nearest ten, the number rounds to 80. What is the number? 4884

Question 2
What number is halfway between 50,000 and 60,000? 53,00054,00055,00056,000

Question 3
The number 48,5_0 is missing a digit. When you round the number to the nearest hundred, you get 48,500. What is a possible value for the missing digit? 4567

Question 4
A number has the digits 6, 4, and 2. To the nearest hundred, the number rounds to 500. What is the number? 426642264462

Question 5
A whole number rounded to the nearest thousand is 35,000. The same number rounded to the nearest hundred is 35,500. What is a possible value for the number? 35,50435,49834,99935,420

Question 6
The number 3,47_,000 is missing a digit. When you round the number to the nearest ten thousand, you get 3,480,000. What is a possible value for the missing digit? 5430

Question 7
A number has the digits 3, 8, and 4. To the nearest hundred, the number rounds to 500. What is the number? 384438483834

Question 8
The number 5,257,_00 is missing a digit. When you round the number to the nearest thousand, you get 5,257,000. What is a possible value for the missing digit? 9573

Question 9
A number has the digits 2, 5, and 7. To the nearest hundred, the number rounds to 500. What is the number? 527572725752

Question 10
A whole number rounded to the nearest hundred is 600. The same number rounded to the nearest ten is 650. What is a possible value for the number? 674646636597

Correct
0Incorrect
0Empty
10

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