hard 4×4 Set 77 Form Exercise

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [3, 2, 10, 9], Column headers: [10, 10, 4, 7]

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Answer: Row 3: [13, 13, 7, 10]; Row 2: [12, 12, 6, 9]; Row 10: [20, 20, 14, 17]; Row 9: [19, 19, 13, 16]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 3
  • 2
  • 10
  • 9
ColHeaders
  • 10
  • 10
  • 4
  • 7
Cells
  • [13,13,7,10]
  • [12,12,6,9]
  • [20,20,14,17]
  • [19,19,13,16]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 4, 1, 8], Column headers: [1, 5, 10, 8]

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Answer: Row 2: [1, 3, 8, 6]; Row 4: [3, 1, 6, 4]; Row 1: [0, 4, 9, 7]; Row 8: [7, 3, 2, 0]

SubType
speed-grid
Difficulty
hard
Operation
-
RowHeaders
  • 2
  • 4
  • 1
  • 8
ColHeaders
  • 1
  • 5
  • 10
  • 8
Cells
  • [1,3,8,6]
  • [3,1,6,4]
  • [0,4,9,7]
  • [7,3,2,0]