hard 4×4 Set 64 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [5, 2, 1, 1], Column headers: [7, 6, 8, 6]

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Answer: Row 5: [35, 30, 40, 30]; Row 2: [14, 12, 16, 12]; Row 1: [7, 6, 8, 6]; Row 1: [7, 6, 8, 6]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 5
  • 2
  • 1
  • 1
ColHeaders
  • 7
  • 6
  • 8
  • 6
Cells
  • [35,30,40,30]
  • [14,12,16,12]
  • [7,6,8,6]
  • [7,6,8,6]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [10, 10, 8, 7], Column headers: [8, 10, 4, 6]

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

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