hard 4×4 Set 92 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [8, 1, 8, 9], Column headers: [9, 3, 8, 2]

Show answer

Answer: Row 8: [72, 24, 64, 16]; Row 1: [9, 3, 8, 2]; Row 8: [72, 24, 64, 16]; Row 9: [81, 27, 72, 18]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 8
  • 1
  • 8
  • 9
ColHeaders
  • 9
  • 3
  • 8
  • 2
Cells
  • [72,24,64,16]
  • [9,3,8,2]
  • [72,24,64,16]
  • [81,27,72,18]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [8, 1, 10, 5], Column headers: [7, 4, 8, 2]

Show answer

Answer: Row 8: [15, 12, 16, 10]; Row 1: [8, 5, 9, 3]; Row 10: [17, 14, 18, 12]; Row 5: [12, 9, 13, 7]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 8
  • 1
  • 10
  • 5
ColHeaders
  • 7
  • 4
  • 8
  • 2
Cells
  • [15,12,16,10]
  • [8,5,9,3]
  • [17,14,18,12]
  • [12,9,13,7]