Answer:
~11 (~ can be replaced with the word about or around)
If you were asking why one might not estimate this problem the answer is:
The values in this equation only include tenths which are not very difficult to add without rounding. While estimating can still be done, it is not necessary.
Step-by-step explanation:
When estimating, we start with rounding our numbers. In this case, we would be rounding to the nearest whole number.
6.8 -> 7 (8 is above 5 meaning we round up)
4.2 -> 4 (4 is below 5 meaning we round down)
This would leave us with the equation: 7 + 4 which equals 11.
~Hope this Helps!~
