hard 4×4 Set 92 Form Exercise

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [9, 1, 5, 10], Column headers: [10, 9, 4, 9]

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Answer: Row 9: [19, 18, 13, 18]; Row 1: [11, 10, 5, 10]; Row 5: [15, 14, 9, 14]; Row 10: [20, 19, 14, 19]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 9
  • 1
  • 5
  • 10
ColHeaders
  • 10
  • 9
  • 4
  • 9
Cells
  • [19,18,13,18]
  • [11,10,5,10]
  • [15,14,9,14]
  • [20,19,14,19]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [3, 9, 2, 9], Column headers: [1, 5, 10, 2]

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

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