hard 4×4 Set 67 Form Exercise

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

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Answer: Row 9: [45, 45, 9, 81]; Row 3: [15, 15, 3, 27]; Row 10: [50, 50, 10, 90]; Row 9: [45, 45, 9, 81]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 9
  • 3
  • 10
  • 9
ColHeaders
  • 5
  • 5
  • 1
  • 9
Cells
  • [45,45,9,81]
  • [15,15,3,27]
  • [50,50,10,90]
  • [45,45,9,81]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [9, 1, 9, 6], Column headers: [10, 2, 10, 1]

Show answer

Answer: Row 9: [1, 7, 1, 8]; Row 1: [9, 1, 9, 0]; Row 9: [1, 7, 1, 8]; Row 6: [4, 4, 4, 5]

SubType
speed-grid
Difficulty
hard
Operation
-
RowHeaders
  • 9
  • 1
  • 9
  • 6
ColHeaders
  • 10
  • 2
  • 10
  • 1
Cells
  • [1,7,1,8]
  • [9,1,9,0]
  • [1,7,1,8]
  • [4,4,4,5]