hard 5×5 Set 64 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [8, 9, 4, 6], Column headers: [2, 8, 1, 8]

Show answer

Answer: Row 8: [16, 64, 8, 64]; Row 9: [18, 72, 9, 72]; Row 4: [8, 32, 4, 32]; Row 6: [12, 48, 6, 48]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 8
  • 9
  • 4
  • 6
ColHeaders
  • 2
  • 8
  • 1
  • 8
Cells
  • [16,64,8,64]
  • [18,72,9,72]
  • [8,32,4,32]
  • [12,48,6,48]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [1, 10, 9, 8], Column headers: [10, 7, 4, 6]

Show answer

Answer: Row 1: [11, 8, 5, 7]; Row 10: [20, 17, 14, 16]; Row 9: [19, 16, 13, 15]; Row 8: [18, 15, 12, 14]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 1
  • 10
  • 9
  • 8
ColHeaders
  • 10
  • 7
  • 4
  • 6
Cells
  • [11,8,5,7]
  • [20,17,14,16]
  • [19,16,13,15]
  • [18,15,12,14]