By expressing the measured values, we can only list the number of numbers we originally measured with our measurement tool. If you use z.B a standard to measure the length of a stick, you can measure it at 36.7 cm. You can`t express this value as 36.71 cm because your measurement tool wasn`t accurate enough to measure a hundredth of a centimeter close. It should be noted that the last figure of a measure was assessed in one way or another by the person making the measurement. For example, a person who measures the length of a stick using a ruler notices that the length of the key appears to be somewhere between 36.6 cm and 36.7 cm, and must estimate the value of the last number. With regard to the method of significant numbers, the rule is that the last figure depreciated to a degree is the first figure with some uncertainty. To determine the number of significant numbers in a value, start with the first reading on the left and count the number of numbers written by the last number on the right side. For example, the measurement value of 36.7 cm has three digits or significant values. Significant figures indicate the accuracy of a measurement tool used to measure a value. The accuracy of the measurement tool is an important factor in the accuracy and accuracy of the measurements.

In general, a precise measurement tool is a measurement tool capable of measuring values in very small steps. For example, a standard linear line can measure length to the next millimetre, while a brake saddle can measure length up to 0.01 millimetres. The brake saddle is a more accurate measurement tool because it can measure extremely small differences in length. The more accurate the measurement tool, the more accurate and accurate the measurements can be. Science is based on observation and experience, and therefore on measurements. Accuracy is the proximity of a measure to fair value for this measurement. Let`s say, for example, that you measure the length of standard computer paper. The packaging in which you bought the paper says it is 11.0 inches long. They measure the length of the paper three times and obtain the following measurements: 11.1 in., 11.2 in., and 10.9 in. These measurements are quite accurate because they are very close to the fair value of 11.0 inches.

On the other hand, if you received a 12-inch measurement, your measurement would not be very accurate.