The nearest numbers on either side, to two significant digits, are 180.0 and 190.0. The first of these is nearer to 184.8
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0.036 The significant figures are indicated by the square brackets 0.0[35550], so we round this part of the figure.
Simply cut off the extra number: 65.7
7.0001 rounded off to 4 significant figures is 7.000
600
When rounding 233.356 to two significant figures, we start counting from the leftmost non-zero digit. In this case, the first two digits are 2 and 3. The digit following the last significant figure (3) is 3, which is less than 5, so we do not round up. Therefore, 233.356 rounded to two significant figures is 230.