expert 5×5 Set 21 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [8, 9, 8], Column headers: [9, 2, 1]

Show answer

Answer: Row 8: [72, 16, 8]; Row 9: [81, 18, 9]; Row 8: [72, 16, 8]

SubType
speed-grid
Difficulty
expert
Operation
×
RowHeaders
  • 8
  • 9
  • 8
ColHeaders
  • 9
  • 2
  • 1
Cells
  • [72,16,8]
  • [81,18,9]
  • [72,16,8]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 10, 8], Column headers: [8, 5, 3]

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Answer: Row 2: [10, 7, 5]; Row 10: [18, 15, 13]; Row 8: [16, 13, 11]

SubType
speed-grid
Difficulty
expert
Operation
+
RowHeaders
  • 2
  • 10
  • 8
ColHeaders
  • 8
  • 5
  • 3
Cells
  • [10,7,5]
  • [18,15,13]
  • [16,13,11]