How do you do 8.7 times 0.45?

Answer 1

45

Answer 2

To multiply 8.7 by 0.45, you first multiply 87 by 45 (ignoring the decimal points). This gives you 3,915. Next, count the total decimal places in the numbers you multiplied (2 from 8.7 and 2 from 0.45), which equals 4 decimal places. Finally, place the decimal point in the answer so that it has a total of 4 decimal places from the right, resulting in 3.915.