\( \begin{array}{lll}\text { 1. Match. } & 0.009 \bullet & \bullet \frac{9}{10} \\ 0.09 & \bullet & \bullet \frac{9}{100} \\ 0.9 & \bullet & \bullet \frac{9}{1000}\end{array} \)

2. PHPR is building a new playground. There are 2 different slides and 5 different swingsets to choose from. For the seesaw, there are 7 options. How many different playgrounds can they build? 3. Carly is making an ice cream sandwich. There are 2 types of sandwich cookies and 4 types of ice cream to choose from. For the candy mix-in, Carly has 2 options. Lastly, there are 3 possibilities for the sauce. How many different ice cream sandwiches can Carly make using exactly one of each item?

Write the fraction \( \frac{14}{21} \) in simplest form.

Write the fraction \( \frac{27}{36} \) in simplest form.

e) \( \frac{1}{2}-\frac{1}{4} \)

3) \( \frac{11}{15}+\frac{13}{20}-\frac{7}{30}= \)