A negative decimal plus a negative decimal equals a more negative decimal
100 That is an estimate.
100 plus 10 plus 1 plus 110 is 221 when expressed as a decimal to base 10.
10.05006009
It is 8419.
7 plus 0.9 plus 0.03 can be written in decimal form as 7.93.
111.1
6.5 + 3 + 2 = 11.5Without a decimal, you would write that as 11½
How do you make a ballpark estimate of 7201 plus 6988?
2 decimal, or 10 binary.
8.81?
It is 9.38