expert 4×4 Set 81 Form Exercise

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

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Answer: Row 10: [30, 10, 60]; Row 1: [3, 1, 6]; Row 6: [18, 6, 36]

SubType
speed-grid
Difficulty
expert
Operation
×
RowHeaders
  • 10
  • 1
  • 6
ColHeaders
  • 3
  • 1
  • 6
Cells
  • [30,10,60]
  • [3,1,6]
  • [18,6,36]

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

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Answer: Row 4: [7, 12, 13]; Row 10: [13, 18, 19]; Row 8: [11, 16, 17]

SubType
speed-grid
Difficulty
expert
Operation
+
RowHeaders
  • 4
  • 10
  • 8
ColHeaders
  • 3
  • 8
  • 9
Cells
  • [7,12,13]
  • [13,18,19]
  • [11,16,17]