Scientific Notation

For 25600.0, shift 4 decimal places to the left. Then, 2.56 x 104 has 3 sig figs, which are rounded up "already".

9.234 x 10 to the minus four

9.4*101

It is: 1.42*10^7

6.743e7 or 6.743 x 10^7

1.1134 × 102 gcm3

2.65 × 104

1) Move the decimal until your number appears to be between 1 and 10 count the spaces that you move the decimal.

2) use the number of spaces as the exponent of 10 (the base)

3) if the original number was greater than 10, the exponent is positive, if the original number was less than 1 then the exponent is negative.

EX: 250,000 becomes 2.5 x 105

but 0.0025 becomes 2.5 x 10-3

415=4.15x102

0.00416 = 4.16 x 10-3

5/1000000 * 10^3

10 in Scientific Notation = 1 x 101

86000 in scientific notation is 8.6 x 10^4

0.5943 in scientific notation is 5.943 x 10^-1

1.02 x 101.

It is: 9.4*10^4 in standard form or scientific notation

It is: 5.2*10^6

On digit (not didgit!).

2.3*10-3

Scientific notation is not a problem that needs to be "solved".

2.068 times 109.

2.51 x 10^6

2.5 x 109 is wrong.

2.5 x 109 would be "2500000000

The correct answer is 2.5 x 1010 or 25 x 109 (But this would not be in true scientific notation). Scientific notation is basically calculated by how many times you would move the decimal point (as a result of multiplying by 10). As follows.

2.5 x 109 = 2500000000

2.5 x 1010 = 25000000000

Not sure how old this question is but thought i would answer anyway.

Some numbers are so huge (like the mass of the sun=1.98892 × 1030 kilograms) that writing a number with thirty or so digits is difficult to manage. There are some numbers so small that we have the same problem (the mass of an electron is 9.10938188 × 10-31 kilograms). Scientific notation is actually clearer and simpler to write in these two cases.
Scientific notation is important IF you are going to understand some things in the universe. Some authors use Scientific notation to discuss the topics they are writing about. You will not understand what those authors are talking about without understanding Scientific notation.

9.461 * 1012