This could be wrong but the remaining pieces he can cut is 3 because if you divide 400 with 8 , it’s 35 as the answer, so then subtract 35 with 15 till you can subtract 15 from it
First find the volume of the box: 8•4•4.5=144 cubic inches. 8 of the 1/8 inch=1 of the 1 cubic inch He could do 144 and 0 143 and 8 142 or 16 Or just keep following the pattern... Hope that helped
