hard 4×4 Set 84 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [9, 4, 6, 5], Column headers: [5, 2, 2, 5]

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Answer: Row 9: [45, 18, 18, 45]; Row 4: [20, 8, 8, 20]; Row 6: [30, 12, 12, 30]; Row 5: [25, 10, 10, 25]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 9
  • 4
  • 6
  • 5
ColHeaders
  • 5
  • 2
  • 2
  • 5
Cells
  • [45,18,18,45]
  • [20,8,8,20]
  • [30,12,12,30]
  • [25,10,10,25]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [6, 4, 5, 6], Column headers: [6, 6, 1, 5]

Show answer

Answer: Row 6: [12, 12, 7, 11]; Row 4: [10, 10, 5, 9]; Row 5: [11, 11, 6, 10]; Row 6: [12, 12, 7, 11]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 6
  • 4
  • 5
  • 6
ColHeaders
  • 6
  • 6
  • 1
  • 5
Cells
  • [12,12,7,11]
  • [10,10,5,9]
  • [11,11,6,10]
  • [12,12,7,11]