hard 4×4 Set 65 Form Exercise

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [3, 9, 7, 5], Column headers: [9, 9, 8, 7]

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

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

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [3, 4, 9, 6], Column headers: [5, 6, 9, 8]

Show answer

Answer: Row 3: [8, 9, 12, 11]; Row 4: [9, 10, 13, 12]; Row 9: [14, 15, 18, 17]; Row 6: [11, 12, 15, 14]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 3
  • 4
  • 9
  • 6
ColHeaders
  • 5
  • 6
  • 9
  • 8
Cells
  • [8,9,12,11]
  • [9,10,13,12]
  • [14,15,18,17]
  • [11,12,15,14]