Decimal Fractions MCQs with Answers & Explanations
Number System & Operations
· Mathematics-General Ability
255 Questions• 192 Mins Practice• Updated for 2026 Competitive Exams
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Showing 241–255 of 255 MCQs
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Solved Questions
255 Questions
241
Find the sum of 9.7 and 0.92.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 9.7 + 0.92 = 10.62. 3. Ensure the result is rounded to three decimal places.
242
Find the sum of 3.3 and 0.28.
Correct Option
Option A
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 3.3 + 0.28 = 3.58. 3. Ensure the result is rounded to three decimal places.
243
Find the sum of 2.9 and 0.24.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 2.9 + 0.24 = 3.14. 3. Ensure the result is rounded to three decimal places.
244
Find the sum of 5.5 and 0.5.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 5.5 + 0.5 = 6.0. 3. Ensure the result is rounded to three decimal places.
245
Find the sum of 1.5 and 0.1.
Correct Option
Option D
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 1.5 + 0.1 = 1.6. 3. Ensure the result is rounded to three decimal places.
246
Find the sum of 6.7 and 0.62.
Correct Option
Option A
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 6.7 + 0.62 = 7.32. 3. Ensure the result is rounded to three decimal places.
247
Compute 11.2 * 1.07.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Ignore the decimal points and multiply as whole numbers. 2. Count the total decimal places (three) and place the decimal accordingly. 3. The product is 11.984.
248
Compute 6.6 * 0.61.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Ignore the decimal points and multiply as whole numbers. 2. Count the total decimal places (three) and place the decimal accordingly. 3. The product is 4.026.
249
Compute 1.6 * 0.11.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Ignore the decimal points and multiply as whole numbers. 2. Count the total decimal places (three) and place the decimal accordingly. 3. The product is 0.176.
250
Find the sum of 11.1 and 1.06.
Correct Option
Option D
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 11.1 + 1.06 = 12.16. 3. Ensure the result is rounded to three decimal places.
251
Compute 5.4 * 0.49.
Correct Option
Option A
Explanation
Step-by-step solution: 1. Ignore the decimal points and multiply as whole numbers. 2. Count the total decimal places (three) and place the decimal accordingly. 3. The product is 2.646.
252
Find the sum of 4.9 and 0.44.
Correct Option
Option A
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 4.9 + 0.44 = 5.34. 3. Ensure the result is rounded to three decimal places.
253
Find the sum of 8.7 and 0.82.
Correct Option
Option C
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 8.7 + 0.82 = 9.52. 3. Ensure the result is rounded to three decimal places.
254
Find the sum of 3.5 and 0.3.
Correct Option
Option A
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 3.5 + 0.3 = 3.8. 3. Ensure the result is rounded to three decimal places.
255
Compute 6.2 * 0.57.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Ignore the decimal points and multiply as whole numbers. 2. Count the total decimal places (three) and place the decimal accordingly. 3. The product is 3.534.
