1
Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [1, 2, 2, 3], Column headers: [2, 7, 10, 9] =
2
Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [6, 10, 10, 4], Column headers: [4, 2, 6, 5] =