Number (order and place value)
Lesson
Here are a list of national parks from around the world, and the number of acres they cover.
| National Park | Size (in Acres) |
|---|---|
|
Danali |
4 716 726 |
|
Gates of the Arctic |
7 523 888 |
|
Katmai |
3 716 000 |
|
Kobuk Valley |
1 750 421 |
|
Lake Clark |
2 636 839 |
|
Glacier bay |
3 225 284 |
The Puzzle
From the following clues, can you identify the park (or parks) with the area described?
- The digit in the ten thousands place is less than the digit in the hundred thousands place.
- The thousands place digit is larger than the digit in the millions place.
- The digit in the ones place is at least twice as large as the digit in the tens place.
Extensions
- Write another clue that would produce only one park as the answer.
- Choose a park from the table. Write a set of clues to identify your park. Describe your clues to a partner and see if they can guess the park you chose.
Problem Adapted from an example in Open Ended Questions for Mathematics published by Appalachian Rural Systemic Initiative in 2000.