hard 4×4 Set 21 Form Exercise

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [7, 3, 1, 6], Column headers: [3, 2, 4, 8]

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

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

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

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Answer: Row 3: [8, 6, 13, 13]; Row 6: [11, 9, 16, 16]; Row 10: [15, 13, 20, 20]; Row 6: [11, 9, 16, 16]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 3
  • 6
  • 10
  • 6
ColHeaders
  • 5
  • 3
  • 10
  • 10
Cells
  • [8,6,13,13]
  • [11,9,16,16]
  • [15,13,20,20]
  • [11,9,16,16]