Question
Add 123.51 m and 21.6m.
Solution
Accuracy of sum is limited to accuracy of least accurate term.
In 123.51 m and 21.6 m, the least accurate term is 21.6 m because it is known to one-tenth of meter only.
Therefore, the sum of 123.51 m and 21.6 m should be accurate to one-tenth of meter only.
By reducing the result to one-tenth of meter, we get 145.1 m.
In 123.51 m and 21.6 m, the least accurate term is 21.6 m because it is known to one-tenth of meter only.
Therefore, the sum of 123.51 m and 21.6 m should be accurate to one-tenth of meter only.
By reducing the result to one-tenth of meter, we get 145.1 m.
