expert 5×5 Set 81 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [3, 10, 5], Column headers: [9, 3, 2]

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Answer: Row 3: [27, 9, 6]; Row 10: [90, 30, 20]; Row 5: [45, 15, 10]

SubType
speed-grid
Difficulty
expert
Operation
×
RowHeaders
  • 3
  • 10
  • 5
ColHeaders
  • 9
  • 3
  • 2
Cells
  • [27,9,6]
  • [90,30,20]
  • [45,15,10]

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

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Answer: Row 6: [16, 10, 14]; Row 4: [14, 8, 12]; Row 10: [20, 14, 18]

SubType
speed-grid
Difficulty
expert
Operation
+
RowHeaders
  • 6
  • 4
  • 10
ColHeaders
  • 10
  • 4
  • 8
Cells
  • [16,10,14]
  • [14,8,12]
  • [20,14,18]