Hi my name is jasmine and i need with rounding numbers and doing long hand addition.

if you take the square root of 3, the answer would be 1.732050808. to round the number, i use a saying to me. the saying is,

5 and up bump it up,

4 below keep it low.

this means that if you have the number 1.92534, then you could round to the nearest whole number, and that would be 2, because 9 is higher than 5, so you move the digit that is to the left by 1. 1+1=2.

if you have the number 1.27384, then you could round to the nearest whole number, and that would be 1, because 2 is less than 4, and so you would keep it low, you do not take it lower, you just keep it the same as it is.

-1/2 +2

step-by-step explanation:

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: