posted by A on .
Add thirty-eight and nine tenths, five and fifty-eight hundredths, seven, and fifteen
and eight tenths.
That doesn't look right.
38.9 + 5.58 + 7.0 + 15.8
Guestimating -- the answer should be in the 60s.
What answer do you get?
38.9 + 5.58 + 7 + 15.8
Significant digits will round to the whole number due to the 7.
Right. 67.28 is correct.
Yes, 67.28. I would not do any rounding off (to 67) unless told to.