Answer:
0
Explanation:
Given the difference:
![-36.673+39.999](https://img.qammunity.org/2023/formulas/mathematics/high-school/3nwwcy9skuvh5tt5pbrvhzu5m0xa05los7.png)
In front-end rounding, we consider the number with the largest place value.
In -36.673, the number with the largest place value is 3.
The digit after 3 us 6, so we round up as follows:
![-36.673\approx-40](https://img.qammunity.org/2023/formulas/mathematics/high-school/4ueumqi2ggz6mbjfkp22pm18nemkllwcx1.png)
Likewise, In 39.999, the number with the largest place value is 3.
The digit after 3 us 9, so we round up as follows:
![39.999\approx40](https://img.qammunity.org/2023/formulas/mathematics/high-school/r6tn89pvt32zl2w8dklqgoc2myp4zxdss9.png)
Therefore:
![-36.673+39.999\approx-40+40=0](https://img.qammunity.org/2023/formulas/mathematics/high-school/918v9sbw2w6ovid8t12oesdkjtnq1kjemw.png)
The diffrence is 0 using front-end rounding.