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1. Problem 1
Scientific notation is used to express either relatively large or relatively small numbers often
containing a high number of leading or trailing zeros. They are expressed in a form 𝑎 × 10𝑏 , where
1 ≤ 𝑎 < 10 and 𝑎 is a real number in a decimal form, whereas 𝑏 is an integer.
2. Problem 2
35.4 × 10
The given number is not in scientific notation, since 𝑎 > 10 and there is an absence of the
exponent 𝑏. The number, 35.4, must satisfy an interval 1 ≤ 𝑎 < 10, and the exponent 𝑏 must be
written as an integer, it’s absent at the moment.
3. Problem 3
The given number is not in scientific notation, since although 𝑎 satisfies the required inequality,
the exponent does not have a base of 10 and no value of 𝑏 is included. In other words, the number
is multiplied by 2 instead of 10𝑏 .
4. Problem 4
0.387 × 10
The number ...
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