Report all decimal places: 3.7 + 7.289 + 4 = ?

Rationale

15.989

To find the sum of the numbers 3.7, 7.289, and 4, it is crucial to maintain the appropriate number of decimal places. Adding these values carefully yields 15.989, which includes all relevant decimal places from the original numbers.

A (15.989) CORRECT

This option correctly represents the sum of the numbers 3.7, 7.289, and 4. When calculated, 3.7 (which can be expressed as 3.700), 7.289, and 4 (or 4.000) combine to give a total of 15.989, preserving the decimal precision required by the problem.

B (5.226) YOUR ANSWER

This choice is incorrect as it does not reflect the sum of the numbers provided. The values do not combine to yield this result; rather, it appears to be a miscalculation that disregards the proper addition of the three terms.

C (15) YOUR ANSWER

This answer fails to account for the decimal values in the original numbers. The sum is not an integer; thus, rounding down the correct sum to 15 overlooks the significant decimal contributions from the values being added.

D (15.07) YOUR ANSWER

This choice is also incorrect, as it inaccurately truncates the decimals from the original numbers. The computed sum exceeds this value, indicating a failure to accurately calculate or represent the total when considering all decimal places.

Conclusion

The correct sum of 3.7, 7.289, and 4 is 15.989, demonstrating the importance of maintaining decimal precision in arithmetic operations. Misinterpretations in rounding or truncating values can lead to incorrect answers that do not reflect the true result of the addition. Consequently, the ability to report all decimal places accurately is essential in mathematical calculations.

Report all decimal places: 3.7 + 7.289 + 4 = ?

15.989

Related Questions

Related Quizzes

How familiar were you with this question?

Report an Issue

Rate this Practice Test