hard 4×4 Set 71 Form Exercise

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [1, 5, 8, 8], Column headers: [10, 6, 6, 9]

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Answer: Row 1: [11, 7, 7, 10]; Row 5: [15, 11, 11, 14]; Row 8: [18, 14, 14, 17]; Row 8: [18, 14, 14, 17]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 1
  • 5
  • 8
  • 8
ColHeaders
  • 10
  • 6
  • 6
  • 9
Cells
  • [11,7,7,10]
  • [15,11,11,14]
  • [18,14,14,17]
  • [18,14,14,17]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 8, 6, 4], Column headers: [7, 2, 3, 5]

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

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