SOLUTION: Please can someone help me why I'm very confused with what my math teacher taught and i have latest tomorrow. I am not allowed to email him for any questions during the weekend and

Question 655806: Please can someone help me why I'm very confused with what my math teacher taught and i have latest tomorrow. I am not allowed to email him for any questions during the weekend and I was afraid to ask him because he was very angry in class. He told us that NATURAL NUMBERS SET is ONLY from 1-9 because numbers like 10 &20 have a zero so they are whole numbers. Is this true?
Answer by kevwill(135) (Show Source): You can put this solution on YOUR website!
You've got a couple different definitions combined into this question, but it should be easy enough to straighten them out.
Traditionally, natural numbers are considered to be the set of positive integers {1, 2, 3, 4, 5, 6, 7, ...} and whole numbers are considered to be the set of non-negative integers {0, 1, 2, 3, 4, 5, 6, ...}
Numbers other than 0 which contain 0 as a digit (e.g. 10, 20, 101, 80104) are in fact whole numbers, but they are also natural numbers.
Only 0 itself is a whole number but not a natural number. Non-zero integers are not excluded from the set of natural numbers just because they have a 0 for one or more digits.

RELATED QUESTIONS
I tried this and came up with the answer {{{3x^2}}}. The problem is {{{2x(3-x)+x^2}}}.... (answered by stanbon)

I am so confused where to start. I seriously have no idea about what to do and my teacher (answered by Alan3354)

Hello my name is Karla I am in the 9th grade.I have been on this website before and the... (answered by josmiceli)

What is 9+10? All of my friends are saying it and laughing that it is 21. But, I am good... (answered by ikleyn)

I am stuck on a question from my text book, on Inequalities, Permutations, and... (answered by longjonsilver)

please help me solve this!! i am so confused & this question will be on my math test... (answered by Alan3354)

Hello. I have a question on my study guide that I can't answer (because math is my most... (answered by mananth)

hi,i am so confused in math and my main struggle is graphs can you help me... (answered by josmiceli)

Please i need help i am so confused. My teacher assigned me this today and it's due... (answered by ReadingBoosters)