How do i round off these significant figures?


1. round off 8630km 2 significant figures.
2. round off 0.01025m 3 significant figures.
3. round off 0.00543l 2 significant figures.
4. round off 7.013g 3 significant figures.
5. round off 0.003629mm 3 significant figures.
number 5 answer 363mm? , if that's right number 1 87km? have right idea or doing wrong completely?

1. round off 8630km 2 significant figures. 2. round off 0.01025m 3 significant figures. 3. round off 0.00543l 2 significant figures. 4. round off 7.013g 3 significant figures. 5. round off 0.003629mm 3 significant figures. number 5 answer 363mm? , if...


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