hard 4×4 Set 16 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [7, 5, 5, 1], Column headers: [8, 1, 9, 1]

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Answer: Row 7: [56, 7, 63, 7]; Row 5: [40, 5, 45, 5]; Row 5: [40, 5, 45, 5]; Row 1: [8, 1, 9, 1]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 7
  • 5
  • 5
  • 1
ColHeaders
  • 8
  • 1
  • 9
  • 1
Cells
  • [56,7,63,7]
  • [40,5,45,5]
  • [40,5,45,5]
  • [8,1,9,1]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 2, 1, 6], Column headers: [5, 10, 3, 1]

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Answer: Row 2: [3, 8, 1, 1]; Row 2: [3, 8, 1, 1]; Row 1: [4, 9, 2, 0]; Row 6: [1, 4, 3, 5]

SubType
speed-grid
Difficulty
hard
Operation
-
RowHeaders
  • 2
  • 2
  • 1
  • 6
ColHeaders
  • 5
  • 10
  • 3
  • 1
Cells
  • [3,8,1,1]
  • [3,8,1,1]
  • [4,9,2,0]
  • [1,4,3,5]