Round off the following quantities to the number of significant figures indicated in parentheses. (a) 35,670.06 m (4, 6)

Key Concepts

Significant Figures

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion. Understanding significant figures is crucial for accurately reporting measurements and calculations in scientific contexts.

Rounding Rules

Rounding rules dictate how to adjust numbers to the desired level of precision. When rounding, if the digit to the right of the last significant figure is less than 5, the last significant figure remains unchanged. If it is 5 or greater, the last significant figure is increased by one. These rules ensure that the rounded number reflects the appropriate level of accuracy.

Measurement Units

Measurement units provide a standard for quantifying physical quantities. In this question, the unit 'm' stands for meters, which is a fundamental unit of length in the International System of Units (SI). Understanding the context of measurement units is essential for interpreting and communicating scientific data accurately.