Chapter 1, Problem 1.21P

Interpretation Introduction

(a)

Interpretation:

$(7.9\times {10}^4)+(5.2\times {10}^4)$ must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(b)

Interpretation:

$(8.73\times {10}^4)+(6.7\times {10}^3)$ must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.

Interpretation Introduction

(c)

Interpretation:

$(3.63\times {10}^{-4})+(4.776\times {10}^{-3})$ must be added using the correct number of significant figures in the answer.

Concept Introduction:

For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.