Write [tex]$4.9 \times 10^{-2}$[/tex] as an ordinary number.
(Note: [tex]$10^{-2}$[/tex] means ten to the power of minus two.)
Answer (2)
4.9 ⋅ 1 0 − 2 = 4.9 ⋅ 100 1 = 4.9 : 100 = 0.049
In converting 4.9 × 1 0 − 2 to an ordinary number, you move the decimal point two places to the left. This results in the number being converted to 0.049 . Understanding this allows easier manipulation of very small numbers in scientific contexts.
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