strawberryicy
New member
- Joined
- Jun 28, 2011
- Messages
- 14
I got these 3 word problems from the math club of our school , and unable to solve it. I am a fifth grader. Thank you!
1. For any whole number N, let #N be the number of letters it takes to write N as an English word. For example, #18=8, since the word "eighteen" has 8 letters. For how many whole numbers greater than 0 and less than 1000 does #N=N?
2.Between which of the following pairs of numbers does the greatest number of even numbers occur?
A) 25 and 141
B) 137 and 245
C) 183 and 297
D) 249 and 363
3. If I made a list of every seven-digit whole number greater than 1 million which has exactly six of its digits equal to 9, how many different numbers would be on my list?
1. For any whole number N, let #N be the number of letters it takes to write N as an English word. For example, #18=8, since the word "eighteen" has 8 letters. For how many whole numbers greater than 0 and less than 1000 does #N=N?
2.Between which of the following pairs of numbers does the greatest number of even numbers occur?
A) 25 and 141
B) 137 and 245
C) 183 and 297
D) 249 and 363
3. If I made a list of every seven-digit whole number greater than 1 million which has exactly six of its digits equal to 9, how many different numbers would be on my list?