Respuesta :

Samtheman21
all you have to do is determine weather the number is going up or down. For example 0.849, the 9 is close to 10 but so the answer would be 0.85.
Brick123
To rounding numbers, there's a rule that most people now. 0, 1, 2, 3, 4 you leave the number the same. 5, 6, 7, 8, 9 you round the number up. So you'll round 4 to 5 so now you have 0.85. Now the 4 is now a 5 so you'll round 8 up to a 9. Now your answer is 0.9

I hope this helps!