Chapter 5, Problem 31A

Interpretation Introduction

Interpretation: The answer to the correct number of significant digits to be calculated.

Concept introduction: Scientific notation is quantitative information is called a measurement and exists of a number and a unit. By using scientific notation too large or too small numbers are conveniently expressed.

Answer to Problem 31A

When calculation of $\left(10434-9.3344\right)$ is performed decimal point should be zero.

Explanation of Solution

In final result number of significant figures is the same as that in the measurement with smallest number of significant figures.

The given digits are $10434-9.3344$

Calculations of these digits are as follows:

  $10434-9.3344\text{=10424}\text{.6656}$

10434 does not have decimal place. Thus after decimal point the answer should be reported to zero digits.

Conclusion

Answer should be reported to zero digits.

  $10434-9.3344\text{=10424}\text{.6656}$