1
Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 5, 2, 2], Column headers: [3, 4, 8, 2] =
2
Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [9, 6, 2, 5], Column headers: [7, 9, 8, 2] =