Three-Digit Place Value — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Rounded to the nearest 10, 47 is 50.
The ones digit is 7, which is 5 or more, so 47 rounds up to 50.
2. Rounded to the nearest 10, 83 is 80.
The ones digit 3 is less than 5, so 83 rounds down to 80.
3. Rounded to the nearest 10, 156 is 160.
Since 6 is 5 or more, 156 rounds up to the next ten, which is 160.
4. Rounded to the nearest 10, 324 is 320.
Because 4 is less than 5, 324 rounds down to the ten below, which is 320.
5. Rounded to the nearest 100, 147 is 100.
The tens digit 4 is less than 5, so 147 rounds down to 100 rather than 200.
6. Rounded to the nearest 100, 263 is 300.
Since 6 is 5 or more, 263 rounds up to the next hundred, which is 300.
7. Rounded to the nearest 100, 580 is 600.
With tens digit 8, 580 rounds up to the nearest hundred above, which is 600.
8. Rounded to the nearest 100, 712 is 700.
The tens digit 1 is less than 5, so 712 rounds down to 700, not 800.
9. Rounded to the nearest 10, 295 is 300.
Since 5 rounds up, 295 becomes 300, because the next ten above 290 is 300.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
68 rounded to nearest 10
→ 70
70
132 rounded to nearest 10
→ 130
130
349 rounded to nearest 100
→ 300
300
725 rounded to nearest 100
→ 700
700
Rounding uses one digit to decide: 5 or more rounds up, less than 5 rounds down to the nearest 10 or 100.