hard 4×4 Set 12 Form Exercise

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

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Answer: Row 2: [8, 3, 5, 6]; Row 2: [8, 3, 5, 6]; Row 9: [15, 10, 12, 13]; Row 8: [14, 9, 11, 12]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 2
  • 2
  • 9
  • 8
ColHeaders
  • 6
  • 1
  • 3
  • 4
Cells
  • [8,3,5,6]
  • [8,3,5,6]
  • [15,10,12,13]
  • [14,9,11,12]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [1, 5, 3, 7], Column headers: [1, 8, 10, 6]

Show answer

Answer: Row 1: [0, 7, 9, 5]; Row 5: [4, 3, 5, 1]; Row 3: [2, 5, 7, 3]; Row 7: [6, 1, 3, 1]

SubType
speed-grid
Difficulty
hard
Operation
-
RowHeaders
  • 1
  • 5
  • 3
  • 7
ColHeaders
  • 1
  • 8
  • 10
  • 6
Cells
  • [0,7,9,5]
  • [4,3,5,1]
  • [2,5,7,3]
  • [6,1,3,1]