hard 4×4 Set 18 Form Exercise

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [10, 6, 4, 4], Column headers: [4, 6, 5, 9]

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Answer: Row 10: [14, 16, 15, 19]; Row 6: [10, 12, 11, 15]; Row 4: [8, 10, 9, 13]; Row 4: [8, 10, 9, 13]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 10
  • 6
  • 4
  • 4
ColHeaders
  • 4
  • 6
  • 5
  • 9
Cells
  • [14,16,15,19]
  • [10,12,11,15]
  • [8,10,9,13]
  • [8,10,9,13]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [6, 9, 10, 3], Column headers: [2, 7, 3, 3]

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Answer: Row 6: [4, 1, 3, 3]; Row 9: [7, 2, 6, 6]; Row 10: [8, 3, 7, 7]; Row 3: [1, 4, 0, 0]

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