Find the greatest possible error for the given measurement if it is to the nearest 10 miles.

150 mi
a. 5 mi
b. 75 mi
c. 0.5 mi
d. 7.5 mi

Find the greatest possible error for each measurement.

18.9 m
a. 0.01 m
b. 0.5 m
c. 9.45 m
d. 0.05 m

Find the greatest possible error for each measurement.
4 1/2 oz
a. 1/4 oz
b. 2 1/2 oz
c. 1 oz
d. 2 1/4 oz

Find the greatest possible error for each measurement.
1 3/4 c
a. 1/2 c
b. 1/4 c
c. 1/6 c
d. 1/8 c

Find the greatest possible error for each measurement.
3 ft
a. 1 ft
b. 1/2 ft
c. 1/4 c
d. 1/6 c

Find the greatest possible error for the given measurement if it is to the nearest 10 miles.
350 mi
a. 0.5 mi
b. 5 mi
c. 17.5 mi
d. 175 mi

How do you work the greatest possible error?

3 answers

It has to do with rounding. If rounding to the nearest 10 miles, and assuming integer values, then

145 - 154 all round to 150
So, the greatest error is 5 miles.

The others work the same way.

150