Question

Write this sum to the correct number of significant digits: 34.01 m + 1940 m + 4.6 m =​

Answer 1

1979

Explanation:

The total of the given numbers is 1978.61. As a sum, it needs to be rounded to the precision of the least-precise number. 1940 is the contributor with the least precision, having the units digit as its least-significant digit.

Rounding the above result to the nearest unit, we get ...

1979