Aside from its actual definition—“difference” in math terms talks about and/or means to subtract. The difference is the result/answer to a subtraction problem.
So, first let's change these numbers into decimal form: 3*0.1 + 4*0.01 + 8*0.001 ? 1.2 Multiply: 0.3 + 0.04 + 0.008 ? 1.2 0.348 < 1.2 One and two tenths is larger. Hopefully this is what you're asking, as this question is unclear