Can you check my work with these scientific notations

1) 100,000 = 10^5

2) 0.0001 = 10^-4

3) 1,500 = 10^2 * 5

4) 0.0009 = 10^-4 * 9

5) 375 = 375 * 10^0

6) 1.2 = 1.2 * 10^0

Am I correct on them or did I make a mistake? Please explain to me if I got some wrong how its done before you just say, "wrong" or give an answer. Like tell me how you got it. Thanks.

The "fun" part of working with a base-10 number system is:

when you multiply by 10, you simply add a zero at the end.

10 * 10 = 100
100 * 10 = 1,000
and so on

10^5, by definition, means 10*10*10*10*10
10 multiplied by itself 5 times = five zeros after the 1

Dividing by 10 is almost as much fun: push the decimal point to the left.

10^1 = 10
10^0 = 10 / 10 = 1
10^-1 = 1/10 = 0.1
10^-2 = 0.1 / 10 = 0.01

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For scientific notation, the coefficient is always between 1 and 10 (or, if you prefer, from 1 to 9.99999...)
followed by the power of 10.

5 * 10^2 would be 5 * 100 = 500 (not 1500)

1500 = 1.5 * 1000 = 1.5 * 10^3

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375 =
375 * 10^0
37.5 * 10^1
3.75 * 10^2
(3.75 * 100)

Although 375 * 10^0 is the same value as 375, it is not the "scientific notation".