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 221–240 of 255 MCQs
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Solved Questions
255 Questions
221
Compute 3.4 * 0.29.
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 0.986.
222
Find the sum of 4.3 and 0.38.
Correct Option
Option A
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 4.3 + 0.38 = 4.68. 3. Ensure the result is rounded to three decimal places.
223
Compute 10.8 * 1.03.
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 11.124.
224
Compute 6.0 * 0.55.
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 3.3.
225
Find the sum of 10.9 and 1.04.
Correct Option
Option C
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 10.9 + 1.04 = 11.94. 3. Ensure the result is rounded to three decimal places.
226
Compute 10.4 * 0.99.
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 10.296.
227
Find the sum of 9.3 and 0.88.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 9.3 + 0.88 = 10.18. 3. Ensure the result is rounded to three decimal places.
228
Find the sum of 10.1 and 0.96.
Correct Option
Option C
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 10.1 + 0.96 = 11.06. 3. Ensure the result is rounded to three decimal places.
229
Compute 1.8 * 0.13.
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 0.234.
230
Compute 2.2 * 0.17.
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 0.374.
231
Find the sum of 5.1 and 0.46.
Correct Option
Option B
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 5.1 + 0.46 = 5.56. 3. Ensure the result is rounded to three decimal places.
232
Compute 8.2 * 0.77.
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 6.314.
233
Find the sum of 2.7 and 0.22.
Correct Option
Option C
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 2.7 + 0.22 = 2.92. 3. Ensure the result is rounded to three decimal places.
234
Find the sum of 3.9 and 0.34.
Correct Option
Option A
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 3.9 + 0.34 = 4.24. 3. Ensure the result is rounded to three decimal places.
235
Compute 8.0 * 0.75.
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 6.0.
236
Find the sum of 7.9 and 0.74.
Correct Option
Option C
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 7.9 + 0.74 = 8.64. 3. Ensure the result is rounded to three decimal places.
237
Compute 9.8 * 0.93.
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 9.114.
238
Find the sum of 9.9 and 0.94.
Correct Option
Option D
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 9.9 + 0.94 = 10.84. 3. Ensure the result is rounded to three decimal places.
239
Compute 5.0 * 0.45.
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 2.25.
240
Find the sum of 1.3 and 0.08.
Correct Option
Option D
Explanation
Step-by-step solution: 1. Align the decimal points for both numbers. 2. Add 1.3 + 0.08 = 1.38. 3. Ensure the result is rounded to three decimal places.
