CSAT (Aptitude)·MCQ Practice
Rounding Off — MCQ Practice
Updated 19 Oct 2026
Interactive MCQ Practice
Test your knowledge. Click “Solve” to reveal options, select your answer, then check the result. 5 questions available.
Q1medium
Using ordinary half-up rounding, what is 7.346 rounded directly to one decimal place?
Q2medium
What is 0.006784 rounded to three significant figures under the usual school convention?
Q3medium
A positive measurement rounds to 12.4 to the nearest tenth using half-up rounding. Which interval contains precisely the possible original values?
Q4medium
For a quick estimate, 498 × 19 is replaced by 500 × 20. How does the estimate compare with the exact product?
Q5medium
Two positive lengths each round to 10 cm to the nearest centimetre under half-up rounding. Which statement about their true sum follows?