hard 5×5 Set 78 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 4, 5, 9], Column headers: [2, 4, 10, 5]

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Answer: Row 2: [4, 8, 20, 10]; Row 4: [8, 16, 40, 20]; Row 5: [10, 20, 50, 25]; Row 9: [18, 36, 90, 45]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 2
  • 4
  • 5
  • 9
ColHeaders
  • 2
  • 4
  • 10
  • 5
Cells
  • [4,8,20,10]
  • [8,16,40,20]
  • [10,20,50,25]
  • [18,36,90,45]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [4, 5, 4, 1], Column headers: [3, 10, 8, 9]

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Answer: Row 4: [7, 14, 12, 13]; Row 5: [8, 15, 13, 14]; Row 4: [7, 14, 12, 13]; Row 1: [4, 11, 9, 10]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 4
  • 5
  • 4
  • 1
ColHeaders
  • 3
  • 10
  • 8
  • 9
Cells
  • [7,14,12,13]
  • [8,15,13,14]
  • [7,14,12,13]
  • [4,11,9,10]