Identifying Greatest Number in Scientific Notation

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A way of representing very large or very small numbers using exponents of 10. For example, 10^3 (1 X 10^3) = 1000.

The part of a number in scientific notation that is multiplied by the power of 10. It is always a number between 1 and 10.

The power of 10 in scientific notation. It indicates how many places the decimal point is moved to the left or right.

A measure of the size of a number. The larger the exponent, the greater the number.

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When comparing scientific notations with the same exponent, the number with the larger coefficient is the greater number.

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The question asks to find the greatest number among several options presented in scientific notation.
The numbers are: 5.25 x 10⁵, 5.55 x 10⁵, 2.55 x 10⁵, and 5 x 10⁵.
To determine which is the largest, compare the values of the coefficients (the numbers before the 'x 10⁵') and exponents.
The exponents are all the same (10⁵), so we only need to compare the coefficients.
The largest coefficient is 5.55.
Therefore, 5.55 x 10⁵ is the greatest number.