hard 4×4 Set 23 Form Exercise

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

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Answer: Row 5: [7, 10, 14, 9]; Row 2: [4, 7, 11, 6]; Row 10: [12, 15, 19, 14]; Row 2: [4, 7, 11, 6]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 5
  • 2
  • 10
  • 2
ColHeaders
  • 2
  • 5
  • 9
  • 4
Cells
  • [7,10,14,9]
  • [4,7,11,6]
  • [12,15,19,14]
  • [4,7,11,6]

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

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Answer: Row 9: [3, 1, 6, 4]; Row 8: [2, 0, 5, 3]; Row 5: [1, 3, 2, 0]; Row 5: [1, 3, 2, 0]

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