1.2 + 3.45 + 6.789 = 11.439 ~~ 11.4 Here, the least number of significant digits after the decimal is one. Hence, the result will be 11.4.(when rounded off to smallest number of decimal places).
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The given statement is true and explains basic addition and subtraction in mathematical tools.
- Suppose the measured values are to be added or subtracted, then the least number of the digits that are significant will be n.
- Thus, then in the sum or difference, the least number of the digits that are significant must be n as well.
- Example - 1.2 + 3.45 + 6.789 = 11.439 ≈ 11.4 or 12.63 - 10.1 ≈ 2.53 = 2.54
- Since the decimal the least number of meaningful digits is one here. Consequently, the result is 11.4.(when rounded to the smallest number of decimal places).
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