16 32 x 3 5 July 8, 2019 16 32 64 128 32 (( 16 4 5 x 3 2 10 5 3 16 x 5 32 v notch trowel 3 16 x 5 32 v notch trowel uses 3 16 x 5 32 trowel 3 16 x 5 32 notched trowel 3 16 x 5 32 v notch - 16 - 32 16 32 / (- 16) 32 x 16