What is 154.45 rounded to the nearest tenth?

Answer 1

154.5

Answer 2

154.4

Rounding up requires the next decimal to be more than 5.

154.46 or even 154.450001 would round to 154.5

*Some texts state that rounding off depends on whether the number preceding a 5 is even or odd, and resulting in an even last number. This up or down technique would only be relevant where sums are going to be averaged.