e A number that has only 1 significant figure can't be rounded to 3 significant figures
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A number with only 1 significant figure can't be rounded to 3 significant figures
1100 to 3 significant figures is 1.10e3
2808 into 3 significant figures is 2810
5,560
0.000039 as you have to round it up. 3 and 8 are the significant figures but as you must round up, the answer becomes 0.000039.