Turn each stack into edge lengths before comparing anything · 12 practice problems

Counting box faces instead: each face is 16 cm2, so A showing 24 faces and B 14 gives the same 384 against 224.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.

Counting box faces instead: each face is 4 cm2, so A showing 24 faces and B 18 gives the same 96 against 72.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.

Counting box faces instead: each face is 9 cm2, so A showing 24 faces and B 22 gives the same 216 against 198.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.

Counting box faces instead: each face is 1 cm2, so A showing 54 faces and B 26 gives the same 54 against 26.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.

Counting box faces instead: each face is 36 cm2, so A showing 24 faces and B 18 gives the same 864 against 648.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.

Counting box faces instead: each face is 25 cm2, so A showing 32 faces and B 26 gives the same 800 against 650.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.

Counting box faces instead: each face is 4 cm2, so A showing 32 faces and B 30 gives the same 128 against 120.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.

Counting box faces instead: each face is 1 cm2, so A showing 40 faces and B 34 gives the same 40 against 34.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.

Counting box faces instead: each face is 4 cm2, so A showing 42 faces and B 38 gives the same 168 against 152.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.

Counting box faces instead: each face is 9 cm2, so A showing 48 faces and B 42 gives the same 432 against 378.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.

Counting box faces instead: each face is 4 cm2, so A showing 40 faces and B 50 gives the same 160 against 200.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.

Counting box faces instead: each face is 4 cm2, so A showing 52 faces and B 58 gives the same 208 against 232.

Another way: Counting hidden faces gives the same answer: every place two boxes touch hides two faces, and the arrangement with more touching has less surface left.