Generally speaking, one can't have more significant figures in the answer to a mathematical equation than the least number of significant figures of all the values used to generate that equation.
6*6=40
6.0*6.0=36
For example: 1.1/2.3=0.478260869... But it doesn't make sense for the answer to have more significant figures than 2: 0.48. The point of significant figures is that the precision of the answer should reflect the precision of the factors that led to the answer.
For example, suppose you were trying to measure the length of two pieces of string, with a ruler graduated down to millimeters. Lets say you wanted the sum of the length of the two strings. It would not make sense to express the sum in nanometers, because the precision of the measurements was in millimeter level. It would also be incorrect to express the sum in centimeters even if the result was a number with one or more trailing zeros, the measurements were accurate to 1 millimeter.
374mm + 626mm = 1000mm
NOT 1 meter nor 100cm (but 1.000 meter, or 100.0cm)
It depends on the number of significant figures from two numbers you are multiplying. But when multiplying you use the same number of significant figures from the numbers you are multiplying with the LEAST number of significant figures. Example: 92,873.239 * 2 = 200,000 (because the number 2 has only 1 significant figure even tho 92,873.239 has 8 significant figures your answer still only has 1 significant figure)
The number .007 contains one significant figure.
It has 1 significant figure.
The number 13.2 have 3 signification figures and a least significant decimal of-1. The new formation should look like (13.20) and have 4 significant figures and a least significant figure of decimal -2.
6 significant figures.
The number of significant figures is one.
The number 20000 only has 1 significant figure.
There is only one significant figure which is the 7. When zeros are placed before a number, they are not considered significant figures.
It depends on the number of significant figures from two numbers you are multiplying. But when multiplying you use the same number of significant figures from the numbers you are multiplying with the LEAST number of significant figures. Example: 92,873.239 * 2 = 200,000 (because the number 2 has only 1 significant figure even tho 92,873.239 has 8 significant figures your answer still only has 1 significant figure)
There are 4 significant figures in 0.0032. Seems to be only 2 significant figures in this number.
4 significant figures.
The number .007 contains one significant figure.
It has 1 significant figure.
The number 13.2 have 3 signification figures and a least significant decimal of-1. The new formation should look like (13.20) and have 4 significant figures and a least significant figure of decimal -2.
It has 1 significant figure.
1 significant figure.
It has 1 significant figure.