5. \( 1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+\frac{1}{5} \) 6. \( -\frac{1}{2}+\frac{2}{3}-\frac{3}{4}+\frac{4}{5}-\frac{5}{6} \) 7. \( 6+6+6+6+6+6+6+6 \) 8. \( 1+\sqrt{2}+\sqrt{3}+2+\sqrt{5}+\cdots+3 \)

6. Compare each pair of numbers. Show your work. a. How much greater is \( 9.8 \times 10^{4} \) than \( 6.2 \times 10^{-3} ? \)

The carousel has 40 cabins with equal distances and the cabins are numbered a person gets on cahin number 3 . if the carousel rotates counter clockwise by the siore of \( \frac{47}{10} \) which cabin will this persun be in?

Add. \( \begin{array}{lll}\text { (a) } 3 \frac{1}{8}+3 \frac{5}{8} & \text { (b) } 2 \frac{5}{11} & \text { (c) } 3 \frac{9}{10}+2 \frac{3}{5} \\ \text { (d) } 5 \frac{1}{2}+8 \frac{1}{8} & \text { (e) } 1 \frac{1}{7}+2 \frac{3}{11} & \text { (f) } 6 \frac{2}{9} \\ \text { (g) } 4 \frac{3}{7}+5 \frac{1}{5} & \text { (h) } 2 \frac{4}{6}+3 \frac{7}{8} & \end{array} \)

Round 15.159 to the nearest ten. 

How many times greater is \( 9 \times 10^{100} \) than \( 3 \times 10^{-10} \) ?