PRECISION AND MIDPOINTS.

PRECISION is based off of the smallest unit available when measuring something. The measurement should be within .5 of the measure. For example, if you measure something that is 5 centimeters, the actual length cannot be under 4.5 centimeters and more than 5.5 centimeters.

NOTE: measurements of like, 50 centimeters and 50.0 centimeters show differences in precision.

how??? Well a measure of 50 cm means that the ruler is divided that way. 50.0 shows that the ruler was divided into millimeters.

The precision of CUSTOMARY UNITS is determined before reducing the fraction.

to find the betweenness of points, jus substitute the measures of the points around the one you want to find the measure of, and then add them.




To find the measure of y and qp if p is between q and R
you substitute the values into an equation, and work it like an algebra problem as seen here. >>>