When rounding 5.05 to two significant figures, we first identify the two most significant digits, which are the 5 and the 0. The digit following the last significant digit is 5, which is equal to or greater than 5, so we round the last significant digit up by 1. Therefore, 5.05 rounded to two significant figures is 5.1.
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9,138 rounded to two significant figures is 9,100
Rounded to two significant figures, 0.00079511 is approximately equal to 0.000080.
It is 0.0054 rounded to two significant figures
1050 contains 4 significant digits and cannot be rounded to two significant figures without changing the value of the number.
4600