Worked Example 1
Round to the Nearest 10
Round 362 to the nearest 10.
- 1362 is between 360 and 370.
- 2The ones digit is 2, which is less than 5.
- 3Round down to 360.
Answer: 360
Florida Grade 3 Math · Number Sense and Operations
MA.3.NSO.1.4: Rounding to the Nearest 10 or 100
What this Grade 3 benchmark means, worked examples, common mistakes, and a free printable worksheet.
Created by a Florida mom · Published by Tropical Learning LLC
What Is Benchmark MA.3.NSO.1.4?
Students round whole numbers from 0 to 1,000 to the nearest 10 or the nearest 100. Rounding gives a number that is easier to use and close to the original.
To round to the nearest 10, look at the ones digit. To round to the nearest 100, look at the tens digit. If that digit is 5 or more, round up; if it is less than 5, round down.
Official benchmarkRound whole numbers from 0 to 1,000 to the nearest 10 or 100.
On the FAST test: part of the Grade 3 reporting category Number Sense and Additive Reasoning, which is about 23–29% of the test.
Worked Examples
Worked Example 2
Round to the Nearest 100
Round 649 to the nearest 100.
- 1649 is between 600 and 700.
- 2Look at the tens digit: 4, which is less than 5.
- 3Round down to 600. (The 9 in the ones place does not matter here.)
Answer: 600
Common Mistakes to Watch For
Rounding in steps
Wrong:449 → 450 → 500
Round in one step. To the nearest 100, look at the tens digit: 4 tens, so 449 rounds to 400.
Changing too many digits to zero
Wrong:382 rounded to the nearest 10 is 300
To the nearest 10, keep the hundreds and the tens: 382 rounds to 380.
Helpful Math Tip
Sketch a number line with the two possible answers at the ends and the halfway point in the middle. Ask, "Which end is the number closer to?"
Related Grade 3 Skills
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Start Practicing FreeIndependent Educational Platform. FastChomp is published by Tropical Learning LLC and is not affiliated with, sponsored by, or endorsed by the Florida Department of Education. FAST and Star assessment names are referenced for informational purposes only. FastChomp practice questions are original educational materials, not official Florida FAST assessment questions.