easy 4×4 Set 81 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 5, 9], Column headers: [4, 1, 2]

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Answer: Row 2: [8, 2, 4]; Row 5: [20, 5, 10]; Row 9: [36, 9, 18]

SubType
speed-grid
Difficulty
easy
Operation
×
RowHeaders
  • 2
  • 5
  • 9
ColHeaders
  • 4
  • 1
  • 2
Cells
  • [8,2,4]
  • [20,5,10]
  • [36,9,18]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [6, 3, 3], Column headers: [5, 10, 9]

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Answer: Row 6: [11, 16, 15]; Row 3: [8, 13, 12]; Row 3: [8, 13, 12]

SubType
speed-grid
Difficulty
easy
Operation
+
RowHeaders
  • 6
  • 3
  • 3
ColHeaders
  • 5
  • 10
  • 9
Cells
  • [11,16,15]
  • [8,13,12]
  • [8,13,12]