1
Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [5, 10, 6, 8], Column headers: [1, 1, 7, 2] =
2
Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 5, 5, 8], Column headers: [6, 7, 10, 8] =