1
Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 2, 5, 9], Column headers: [5, 9, 7, 2] =
2
Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [5, 7, 6, 9], Column headers: [6, 10, 1, 8] =