hard 4×4 Set 91 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [10, 4, 4, 7], Column headers: [2, 4, 6, 7]

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Answer: Row 10: [20, 40, 60, 70]; Row 4: [8, 16, 24, 28]; Row 4: [8, 16, 24, 28]; Row 7: [14, 28, 42, 49]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 10
  • 4
  • 4
  • 7
ColHeaders
  • 2
  • 4
  • 6
  • 7
Cells
  • [20,40,60,70]
  • [8,16,24,28]
  • [8,16,24,28]
  • [14,28,42,49]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [6, 9, 6, 3], Column headers: [10, 4, 1, 8]

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Answer: Row 6: [4, 2, 5, 2]; Row 9: [1, 5, 8, 1]; Row 6: [4, 2, 5, 2]; Row 3: [7, 1, 2, 5]

SubType
speed-grid
Difficulty
hard
Operation
-
RowHeaders
  • 6
  • 9
  • 6
  • 3
ColHeaders
  • 10
  • 4
  • 1
  • 8
Cells
  • [4,2,5,2]
  • [1,5,8,1]
  • [4,2,5,2]
  • [7,1,2,5]