1
Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [4, 8, 6, 7], Column headers: [9, 7, 2, 10] =
2
Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [6, 7, 3, 8], Column headers: [3, 3, 10, 6] =