Question

the answer to the calculation below with the correct number of significant figures is 15400 + 957 + 1210 =

Explanation:

Step1: Perform the addition

$15400+957 + 1210=17567$

Step2: Determine significant - figures for addition

The number 15400 has the greatest uncertainty (the zeroes may or may not be significant depending on the context, but it's the least precise number among the ones being added). When adding, we round the result to the same place value as the least - precise number. 15400 is precise to the hundreds place. So, 17567 rounded to the nearest hundred is 17600.

Answer:

B. 17600