Multiply the numbers, count the total number of decimal places in the problem and place that many in your product.
45 times 17.
using Math
by using the Gamma method apparently...:)
In using scientific notation, you can use the number with the decimal to solve your problem and then factor in the power after the fact.
Its harder to solve the equations with grande numbers
8.4
3.1415926
4 X 2 = 8
5 + 1 + 15
Decimal notation is.
65 X 15 325 65x 975
Without a decimal point, six can. With a decimal point, eighteen can.