The rules for identifying significant figures when writing or interpreting numbers are as follows:
All non-zero digits are considered significant. For example, 91 has two significant figures (9 and 1), while 123.45 has five significant figures (1, 2, 3, 4 and 5).
Zeros appearing anywhere between two non-zero digits are significant. Example: 101.1203 has seven significant figures: 1, 0, 1, 1, 2, 0 and 3.
Leading zeros are not significant. For example, 0.00052 has two significant figures: 5 and 2.
Trailing zeros in a number containing a decimal point are significant. For example, 12.2300 has six significant figures: 1, 2, 2, 3, 0 and 0. The number 0.000122300 still has only six significant figures (the zeros before the 1 are not significant). In addition, 120.00 has five significant figures since it has three trailing zeros.
You count the number of figures from left to right starting with the first number different from 0. Example: 205 has 3 significant figures 0.0000205 has 3 significant figures 0.000020500000 has 8 significant figures
The least number of significant figures in any number of the problem determines the number of significant figures in the answer which in this case is 270.9
The least number of significant figures in any number of the problem determines the number of significant figures in the answer which in this case is 656.64
The least number of significant figures in any number of the problem determines the number of significant figures in the answer which in this case is 273.8
The least number of significant figures in any number of the problem determines the number of significant figures in the answer which in this case is 270.8
You count the number of figures from left to right starting with the first number different from 0. Example: 205 has 3 significant figures 0.0000205 has 3 significant figures 0.000020500000 has 8 significant figures
The least number of significant figures in any number of the problem determines the number of significant figures in the answer which in this case is 270.9
The least number of significant figures in any number of the problem determines the number of significant figures in the answer which in this case is 656.64
Four significant figures. Review you rules for significant figures. Some chemistry teachers, especially at the college level, are very concerned with significant figures.
The least number of significant figures in any number of the problem determines the number of significant figures in the answer which in this case is 273.8
The least number of significant figures in any number of the problem determines the number of significant figures in the answer which in this case is 270.8
When adding or multiplying numbers, the result should have the same number of decimal places as the number with the fewest decimal places. For addition, the result should have the same number of significant figures as the number with the fewest significant figures. For multiplication, the result should have the same number of significant figures as the number with the fewest significant figures.
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rules for calculating S.F. are: 1,all non zero digits r significant 2,
But according to the rules of significant figures, the least number of significant figures in any number of the problem determines the number of significant figures in the answer which, in this case, would be 11.
Significant figures are the digits in a number that contribute to its precision. The rules include: all non-zero digits are significant; zeros between significant digits are significant; leading zeros are not significant; trailing zeros in a decimal number are significant; and in whole numbers without a decimal point, trailing zeros are not considered significant. When performing calculations, the result should be reported with the same number of significant figures as the measurement with the least significant figures involved in the calculation.
all non zero digits are significant .2.zeroes betweenother significant.