Add thirty-eight and nine tenths, five and fifty-eight hundredths, seven, and fifteen
and eight tenths.
A~1662?
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.
67.28
67.28?
Right. 67.28 is correct.
Yes, 67.28. I would not do any rounding off (to 67) unless told to.
To add these numbers, we can break it down into three steps:
Step 1: Add thirty-eight and nine tenths, and five and fifty-eight hundredths.
To do this, we add the whole numbers separately and add the decimal parts separately.
38 + 5 = 43
0.9 + 0.58 = 1.48
Step 2: Add the result from step 1 with seven.
We can simply add the whole numbers together:
43 + 7 = 50
Step 3: Add the result from step 2 with fifteen and eight tenths.
Once again, we add the whole numbers separately and the decimal parts separately.
50 + 15 = 65
0.8 + 0.08 = 0.88
So, the final answer is 65 and 88 hundredths, or 65.88.