expert 4×4 Set 89 Form Exercise

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

Show answer

Answer: Row 3: [12, 12, 12]; Row 1: [10, 10, 10]; Row 7: [16, 16, 16]

SubType
speed-grid
Difficulty
expert
Operation
+
RowHeaders
  • 3
  • 1
  • 7
ColHeaders
  • 9
  • 9
  • 9
Cells
  • [12,12,12]
  • [10,10,10]
  • [16,16,16]

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

Show answer

Answer: Row 6: [4, 3, 1]; Row 1: [9, 2, 6]; Row 2: [8, 1, 5]

SubType
speed-grid
Difficulty
expert
Operation
-
RowHeaders
  • 6
  • 1
  • 2
ColHeaders
  • 10
  • 3
  • 7
Cells
  • [4,3,1]
  • [9,2,6]
  • [8,1,5]