What does "round normally" mean with 0.5?

0.1 - 0.4 becomes 0, 0.5 - 0.9 becomes 1

There are basically 3 types of Rounding: Round UP, Round Down, Round Normal

**Round Up**, any decimals will always become the next higher number. i.e 3.1, 4.5, 7.8 become: 4, 5, and 8 respectively.

**Round Down**, any decimals go to the next lower number, so 3.1, 4.5, 7.8 become: 3, 4, and 7 respectively

And of course,

**Round Norma**l: 3.1, 4.5, 7.8 become: 3, 5, and 8 respectively