1
Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [7, 2, 7, 8], Column headers: [9, 9, 10, 1] =
2
Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [9, 9, 7, 10], Column headers: [6, 1, 4, 2] =