hard 4×4 Set 87 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [8, 2, 2, 10], Column headers: [10, 10, 6, 9]

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Answer: Row 8: [80, 80, 48, 72]; Row 2: [20, 20, 12, 18]; Row 2: [20, 20, 12, 18]; Row 10: [100, 100, 60, 90]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 8
  • 2
  • 2
  • 10
ColHeaders
  • 10
  • 10
  • 6
  • 9
Cells
  • [80,80,48,72]
  • [20,20,12,18]
  • [20,20,12,18]
  • [100,100,60,90]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [8, 8, 9, 1], Column headers: [1, 6, 7, 2]

Show answer

Answer: Row 8: [9, 14, 15, 10]; Row 8: [9, 14, 15, 10]; Row 9: [10, 15, 16, 11]; Row 1: [2, 7, 8, 3]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 8
  • 8
  • 9
  • 1
ColHeaders
  • 1
  • 6
  • 7
  • 2
Cells
  • [9,14,15,10]
  • [9,14,15,10]
  • [10,15,16,11]
  • [2,7,8,3]