Worked Example 1
Round 43 to the Nearest 10
Round 43 to the nearest 10.
- 143 is between 40 and 50.
- 243 is 3 away from 40 and 7 away from 50.
- 3It is closer to 40.
Answer: 40
Florida Grade 2 Math · Number Sense and Operations
MA.2.NSO.1.4: Rounding to the Nearest 10
What this Grade 2 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.2.NSO.1.4?
Rounding gives a number that is close in value but easier to use. In Grade 2, students round whole numbers from 0 to 100 to the nearest 10.
Find the two tens the number is between, then decide which one it is closer to. A number that ends in 5 is exactly in the middle, and it rounds up.
Official benchmarkRound whole numbers from 0 to 100 to the nearest 10.
How it is tested: Grade 2 students take FAST Star Math, Florida's math test for Kindergarten through Grade 2.
Worked Examples
Worked Example 2
A Number Ending in 5
Round 65 to the nearest 10.
- 165 is between 60 and 70.
- 2It is exactly halfway: 5 away from each.
- 3When a number is halfway, round up.
Answer: 70
Common Mistakes to Watch For
Rounding down when the ones digit is 5
Wrong:85 rounds to 80
85 is halfway between 80 and 90, and halfway numbers round up: 85 rounds to 90.
Picking the closer ten the wrong way
Wrong:37 rounds to 30
37 is 3 away from 40 and 7 away from 30. It is closer to 40, so it rounds to 40.
Helpful Math Tip
Draw a short number line from one ten to the next (like 30 to 40) and mark the middle (35). Where the number lands shows which ten it rounds to.
Related Grade 2 Skills
Make Florida Math Practice More Fun
Help your child build math confidence with original interactive questions aligned with Florida's B.E.S.T. Mathematics Standards.
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.