300,000 in standard form is written as 3 x 10^5. This is because standard form is a way of writing numbers by using powers of 10. In this case, 3 is the coefficient and 5 is the exponent, indicating that the decimal point has been moved 5 places to the right to create the number 300,000.
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Writing a number in standard form simply means to express the number in its 'normal' form. Therefore, your example is written in standard form as: 300,000
300000 40000 6000 700 30 5 in standard form is 346,735
8.453 x 10^8
95% of 300000= 95% * 300000= 0.95 * 300000= 285,000
8% of 300000 = 300000*8/100 = 24000
A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point. So the decimal for 300000 is 300000, exactly as in the question.