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A student added three figures 72.1, 3.32 and 0.003. The correct answer regrading the rules of the addition of the significant figures will be ______?

A student added three figures 72.1, 3.32 and 0.003. The correct answer regrading the rules of the addition of the significant figures will be ______?

Explanation
  • The rule for addition of significant figures states that the result should have the same number of decimal places as the number with the fewest decimal places.
  • Given numbers:
    • 72.1 (1 decimal place)
    • 3.32 (2 decimal places)
    • 0.003 (3 decimal places)
  • Sum: 72.1 + 3.32 + 0.003 = 75.423
  • Rounding to one decimal place (as in 72.1), the final answer is 75.4.