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 181–200 of 255 MCQs
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Solved Questions
255 Questions
181
Compute 2.0 * 0.15.
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 0.3.
182
Find the sum of 2.3 and 0.18.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 2.3 + 0.18 = 2.48. 3. Ensure the result is rounded to three decimal places.
183
Compute 4.2 * 0.37.
Correct Option
Option C
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 1.554.
184
Find the sum of 1.7 and 0.12.
Correct Option
Option A
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 1.7 + 0.12 = 1.82. 3. Ensure the result is rounded to three decimal places.
185
Compute 6.4 * 0.59.
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 3.776.
186
Compute 4.4 * 0.39.
Correct Option
Option D
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 1.716.
187
Find the sum of 6.9 and 0.64.
Correct Option
Option A
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 6.9 + 0.64 = 7.54. 3. Ensure the result is rounded to three decimal places.
188
Compute 3.2 * 0.27.
Correct Option
Option C
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 0.864.
189
Compute 4.8 * 0.43.
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 2.064.
190
Find the sum of 9.1 and 0.86.
Correct Option
Option C
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 9.1 + 0.86 = 9.96. 3. Ensure the result is rounded to three decimal places.
191
Compute 6.8 * 0.63.
Correct Option
Option C
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 4.284.
192
Compute 8.6 * 0.81.
Correct Option
Option C
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 6.966.
193
Find the sum of 7.7 and 0.72.
Correct Option
Option C
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 7.7 + 0.72 = 8.42. 3. Ensure the result is rounded to three decimal places.
194
Compute 5.2 * 0.47.
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 2.444.
195
Find the sum of 10.3 and 0.98.
Correct Option
Option D
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 10.3 + 0.98 = 11.28. 3. Ensure the result is rounded to three decimal places.
196
Find the sum of 10.5 and 1.0.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 10.5 + 1.0 = 11.5. 3. Ensure the result is rounded to three decimal places.
197
Find the sum of 6.1 and 0.56.
Correct Option
Option C
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 6.1 + 0.56 = 6.66. 3. Ensure the result is rounded to three decimal places.
198
Find the sum of 5.7 and 0.52.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 5.7 + 0.52 = 6.22. 3. Ensure the result is rounded to three decimal places.
199
Compute 4.0 * 0.35.
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 1.4.
200
Find the sum of 1.9 and 0.14.
Correct Option
Option D
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 1.9 + 0.14 = 2.04. 3. Ensure the result is rounded to three decimal places.
