none
The accuracy of the answer is limited to the LEAST significant figures of the input. So if two measured quantities are multiplied or divided, one of which is accurate to only two significant figures, and other to six significant figures, the answer is only accurate to two significant figures. HOWEVER: use all the figures you have for the calculation, and then round your answer to two significant figures. Also, however, remember that if you are multiplying by an actual exact number, as in doubling, the significant figures of that 2 is unlimited, so the answer is only limited by the significant figures of the number you are doubling.
Two significant figures.
Two significant figures.
There are two significant figures in 0.068.
3,456.5 to two significant figures is 3,500.
0.0056 4500
all the zeros are significant. there are four significant figures.
Two of them.
All four figures are significant in 8,807.
There is 2 significant figures in the number 12.
Three. All nonzero digits are significant and zeros in between significant digits are always significant.
690 has two significant figures. The zero at the end is not significant for the purposes of determining the number of significant figures.
There are 4 significant figures in 0.0032. Seems to be only 2 significant figures in this number.
The product of 24m and 3.26m is 78.24m². Since both values have two significant figures, the answer should be rounded to two significant figures as well, giving 78m².
0.0074 54 7.8 or 1.01 0.0310
The accuracy of the answer is limited to the LEAST significant figures of the input. So if two measured quantities are multiplied or divided, one of which is accurate to only two significant figures, and other to six significant figures, the answer is only accurate to two significant figures. HOWEVER: use all the figures you have for the calculation, and then round your answer to two significant figures. Also, however, remember that if you are multiplying by an actual exact number, as in doubling, the significant figures of that 2 is unlimited, so the answer is only limited by the significant figures of the number you are doubling.
Two - all nonzero numbers are significant.