Final answer:
To convert 6.345 × 10^8 to standard notation, move the decimal point 8 places to the right, resulting in 634,500,000.
Step-by-step explanation:
To change 6.345 × 10^8 into standard notation, you need to move the decimal point 8 places to the right, because the exponent on the 10 indicates how many places to move the decimal. Since the exponent is 8, we move the decimal 8 places right, which gives us 634,500,000.
Remember that each place the decimal is moved to the right is a power of ten increase, converting the number from scientific notation to standard notation.