The total number of boats is given by 2 + 6 = 8
Thus, the amount of fuel he needs for all the boats is given by 8 x 126
Using place value system and extended number system, we have:
[tex]8\times126=8\times100+8\times20+8\times6 \\ \\ =800+160+48=1,008[/tex]
Therefore, the three partial products deshawn could add to find the final product are 800 + 160 + 48