hard 4×4 Set 66 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [7, 1, 8, 4], Column headers: [4, 7, 3, 9]

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Answer: Row 7: [28, 49, 21, 63]; Row 1: [4, 7, 3, 9]; Row 8: [32, 56, 24, 72]; Row 4: [16, 28, 12, 36]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 7
  • 1
  • 8
  • 4
ColHeaders
  • 4
  • 7
  • 3
  • 9
Cells
  • [28,49,21,63]
  • [4,7,3,9]
  • [32,56,24,72]
  • [16,28,12,36]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [10, 3, 10, 2], Column headers: [3, 9, 3, 8]

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Answer: Row 10: [13, 19, 13, 18]; Row 3: [6, 12, 6, 11]; Row 10: [13, 19, 13, 18]; Row 2: [5, 11, 5, 10]

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