Rewrite expression: Rewrite the expression without decimal. 0.345×83.8 can be written as 345×838 after moving the decimal places to the right.
Multiply whole numbers: Multiply the whole numbers.345×838=289230
Count decimal places: Count the decimal places in the original expression.0.345 has three decimal places.83.8 has one decimal place.0.345×83.8 has 3+1=4 decimal places.
Move decimal in product: Move the decimal in the product of whole numbers to find the answer.Move the decimal 4 places to the left in 289230.0.345×83.8=28.9230