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To find a number to two significant figures or any amount of significant figures you look at one plus the amount of asked figures, in this case the third significant figure, and if it is 5 or greater increase the asked amount of significant figures by one. If it is 4 or less make no changes to your number. Finally report the calculated number with the asked amount of significant figures.

Q: What is 2.072 to two significant figures?

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42 has two significant figures.

Rounded to two significant figures it becomes 1.0e4

Rounded to two significant figures it becomes 3.6

687 to two significant figures is 690.

23.43 rounded to two significant figures is 23.

Related questions

There are two significant figures which are the two 2s.

There are 4 significant figures in 0.0032. Seems to be only 2 significant figures in this number.

22.1 to two significant figures = 22

23.81558 to two significant figures is 24.

42 has two significant figures.

Two significant figures.

Two significant figures.

Two of them.

There are two significant figures in 0.068.

Rounded to two significant figures it becomes 30.

34.654 rounded to two significant figures is 35.

Rounded to two significant figures it becomes 58,000