Gaining a Grasp of the Scale of the Universe:    Scientific Notation

A shorthand way of writing large and small numbers

1 = 1x100 (not so short!)

10 = 1x101 (1 followed by 1 zero)

100 = 1x102 (1 followed by 2 zeros)

1000 = 1x103 etc….

What about "complicated" numbers, say 1367 for example?

1367 = 1.367x103 (move the decimal 3 places to the right)

0.1 = 1x10-1 (move the decimal 1 place to the left)

0.01 = 1x10-2,etc. (move the decimal 2 places to the left)

 

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