standard_description: Understand that positive and negative numbers are used together to describe quantities having opposite directions or values (e.g., temperature above/below zero, elevation above/below sea level, credits/debits, positive/negative electric charge); use positive and negative numbers to represent quantities in real-world contexts, explaining the meaning of 0 in each situation.
problem_activity: Task
How many one-hundred dollar bills do you need to make \$2,000? \$20,000?
How many ten dollar bills do you need to make \$2,000? \$20,000?
How many dimes do you need to make \$0.20? \$2? \$20?
How many pennies do you need to make \$0.02? \$0.20? \$2?
Use the answers to the questions above to fill in the table:
|  $A$   | $B$  | $A\div B$ |
|--------|------|-----------|
|   2    | 0.01 |           |
|   20   | 0.1  |           |
|  200   |  1   |           |
| 2,000  |  10  |           |
| 20,000 | 100  |           |
What changes (and how does it change) and what stays the same as you move from row to row down the table?


aligns: no