hard 4×4 Set 42 Form Exercise

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

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Answer: Row 5: [40, 15, 40, 40]; Row 2: [16, 6, 16, 16]; Row 8: [64, 24, 64, 64]; Row 2: [16, 6, 16, 16]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 5
  • 2
  • 8
  • 2
ColHeaders
  • 8
  • 3
  • 8
  • 8
Cells
  • [40,15,40,40]
  • [16,6,16,16]
  • [64,24,64,64]
  • [16,6,16,16]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [9, 1, 9, 2], Column headers: [1, 7, 9, 4]

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Answer: Row 9: [8, 2, 0, 5]; Row 1: [0, 6, 8, 3]; Row 9: [8, 2, 0, 5]; Row 2: [1, 5, 7, 2]

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