hard 4×4 Set 99 Form Exercise

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [3, 7, 1, 3], Column headers: [6, 8, 1, 4]

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Answer: Row 3: [9, 11, 4, 7]; Row 7: [13, 15, 8, 11]; Row 1: [7, 9, 2, 5]; Row 3: [9, 11, 4, 7]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 3
  • 7
  • 1
  • 3
ColHeaders
  • 6
  • 8
  • 1
  • 4
Cells
  • [9,11,4,7]
  • [13,15,8,11]
  • [7,9,2,5]
  • [9,11,4,7]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [7, 6, 9, 6], Column headers: [6, 5, 7, 2]

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

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