hard 4×4 Set 88 Form Exercise

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

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Answer: Row 5: [20, 10, 25, 45]; Row 9: [36, 18, 45, 81]; Row 9: [36, 18, 45, 81]; Row 2: [8, 4, 10, 18]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 5
  • 9
  • 9
  • 2
ColHeaders
  • 4
  • 2
  • 5
  • 9
Cells
  • [20,10,25,45]
  • [36,18,45,81]
  • [36,18,45,81]
  • [8,4,10,18]

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

Show answer

Answer: Row 2: [7, 3, 8, 7]; Row 5: [4, 0, 5, 4]; Row 9: [0, 4, 1, 0]; Row 4: [5, 1, 6, 5]

SubType
speed-grid
Difficulty
hard
Operation
-
RowHeaders
  • 2
  • 5
  • 9
  • 4
ColHeaders
  • 9
  • 5
  • 10
  • 9
Cells
  • [7,3,8,7]
  • [4,0,5,4]
  • [0,4,1,0]
  • [5,1,6,5]