5(10)+8(0.1)+4(0.001)standard form

Question

How I write this in standard form 

Answer 1

Standard form is the normal way that you write numbers.  For example 512.035

5(10) + 8(0.1) + 4(0.001)       Given

50 + 0.8 + 0.004                    Multiply

50.804                                  Add the digits

50.804 is the standard form