hard 4×4 Set 80 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 7, 10, 2], Column headers: [6, 4, 10, 1]

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Answer: Row 2: [12, 8, 20, 2]; Row 7: [42, 28, 70, 7]; Row 10: [60, 40, 100, 10]; Row 2: [12, 8, 20, 2]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 2
  • 7
  • 10
  • 2
ColHeaders
  • 6
  • 4
  • 10
  • 1
Cells
  • [12,8,20,2]
  • [42,28,70,7]
  • [60,40,100,10]
  • [12,8,20,2]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [5, 10, 2, 8], Column headers: [1, 4, 8, 9]

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Answer: Row 5: [6, 9, 13, 14]; Row 10: [11, 14, 18, 19]; Row 2: [3, 6, 10, 11]; Row 8: [9, 12, 16, 17]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 5
  • 10
  • 2
  • 8
ColHeaders
  • 1
  • 4
  • 8
  • 9
Cells
  • [6,9,13,14]
  • [11,14,18,19]
  • [3,6,10,11]
  • [9,12,16,17]