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Paul I know this is a easy one for you, not for me. I would like to ask if there is a way for you to help me understand this or maybe a chart for me to help me understand this, it may be simple to you, I just cant understand.
I see this number (.00005) as 5 one hundred thousandths of an inch. I see this number (.0005) as 5 ten thousandths of an inch. I see this number (.000005) 5 millionths of an inch.
I am told that (.00005) is actually 50 millionths.
I DON'T SEE THAT! Did we skip the 100,000 of an inch? Please explain best you can that maybe I can understand?

Questioner:jerry
Country:New York, United States
Private:No
Subject:Math

Question:

Paul I know this is a easy one for you, not for me. I would like to ask if there is a way for you to help me understand this or maybe a chart for me to help me understand this, it may be simple to you, I just cant understand.
I see this number (.00005) as 5 one hundred thousandths of an inch.

>>>> That is correct.

I see this number (.0005) as 5 ten thousandths of an inch.

>>>> Yes.

I see this number (.000005) 5 millionths of an inch.

>>>> OK.

I am told that (.00005) is actually 50 millionths.

>>> Well, "could be written as" would be a better way to express it.  It could be written as  .000050, and the unnecessary zero at the end used to express it as millionths.

In the same way, you could see  .5 as "five hundredths", or "one-half" or many other forms.

I DON'T SEE THAT! Did we skip the 100,000 of an inch? Please explain best you can that maybe I can understand?

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Note for the future: "Advanced Math" is Trig and precalc.  This belongs to the elementary arithmetic section.

Volunteer

Paul Klarreich

Expertise

I can answer questions in basic to advanced algebra (theory of equations, complex numbers), precalculus (functions, graphs, exponential, logarithmic, and trigonometric functions and identities), basic probability, and finite mathematics, including mathematical induction. I can also try (but not guarantee) to answer questions on Abstract Algebra -- groups, rings, etc. and Analysis -- sequences, limits, continuity. I won't understand specialized engineering or business jargon.

Experience

I taught at a two-year college for 25 years, including all subjects from algebra to third-semester calculus.

Education/Credentials
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