This grade 3 rounding test checks rounding to the nearest 10 and 100 in 45 minutes, with 9 questions for a total of 20 points.
This test has 9 questions worth 20 points. It checks rounding to the nearest 10 and 100 for standard 3.NBT.A.1. Show your work, write full sentences for explanations, and plan about 45 minutes.
- Grade: Grade 3
- Chapter: Rounding to the Nearest 10 and 100
- Common Core: 3.NBT.A.1
- Time: 45 minutes
- Total: 20 points (Question 1: 3 pts; Question 2: 3 pts; Question 3: 2 pts; Question 4: 2 pts; Question 5: 2 pts; Question 6: 2 pts; Question 7: 2 pts; Question 8: 2 pts; Question 9: 2 pts)
Grade 3 Rounding Test: questions 1–5
Question 1: Nearest 10 (3 points)
Round each number to the nearest 10.
- \(47\) (1 point)
- \(135\) (1 point)
- \(598\) (1 point)
Question 2: Nearest 100 (3 points)
Round each number to the nearest 100.
- \(214\) (1 point)
- \(650\) (1 point)
- \(972\) (1 point)
Question 3: Number line check (2 points)
Priya plots 73 on the number line.
- Round 73 to the nearest 10. (1 point)
- Is 75 closer to 70 or 80? Explain. (1 point)
Question 4: One number, two roundings (2 points)
Look at the number line for 483.
- Round 483 to the nearest 10. (1 point)
- Round 483 to the nearest 100. (1 point)
Question 5: Cards that round to 500 (2 points)
Five number cards are shown. Write the numbers that round to 500 when rounded to the nearest 100.
Grade 3 Rounding Test: questions 6–9
Question 6: Estimate and check (2 points)
Aisha adds 62 + 29.
- Estimate the sum by rounding each number to the nearest 10. (1 point)
- Find the exact sum. How far is the estimate from the exact sum? (1 point)
Question 7: Numbers that round to 70 (2 points)
What are the smallest and the greatest whole numbers that round to 70 when rounded to the nearest 10?
Question 8: Weekend drive (2 points)
Diego’s family drove 178 miles on Saturday and 226 miles on Sunday.
- Round each distance to the nearest 100 miles and estimate the total. (1 point)
- Find the exact total. How far is the estimate from it? (1 point)
Question 9: Find the mistake (2 points)
Mei rounds 749 to the nearest 100 and writes 800.
Explain her mistake and give the correct answer.
How to use this grade 3 rounding test
Take this grade 3 rounding test without notes, then grade it with the test answer key out of 20 points.
See every chapter on the Grade 3 math page.




