hard 4×4 Set 93 Form Exercise

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

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Answer: Row 1: [8, 4, 6, 8]; Row 1: [8, 4, 6, 8]; Row 6: [13, 9, 11, 13]; Row 8: [15, 11, 13, 15]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 1
  • 1
  • 6
  • 8
ColHeaders
  • 7
  • 3
  • 5
  • 7
Cells
  • [8,4,6,8]
  • [8,4,6,8]
  • [13,9,11,13]
  • [15,11,13,15]

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

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Answer: Row 3: [6, 2, 4, 6]; Row 9: [0, 4, 2, 0]; Row 4: [5, 1, 3, 5]; Row 10: [1, 5, 3, 1]

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