What's 24.447 rounded to 1 dp? Because the computer says 24.4. I believe it's 24.5.
Let's see. .447 - .4 = .047
On the other hand, .5 - .447 = .053
Which of those differences is the least? That tells you which to round to.
Your computer is correct.
1 DP is the the First number after decimal point.
And you the number after round it if it's 0.50 or higher you have to round 4 to 5 if it's lower you leave it .
24.4
