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: [10, 3, 9, 8], Column headers: [1, 9, 7, 3]

Show answer

Answer: Row 10: [10, 90, 70, 30]; Row 3: [3, 27, 21, 9]; Row 9: [9, 81, 63, 27]; Row 8: [8, 72, 56, 24]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 10
  • 3
  • 9
  • 8
ColHeaders
  • 1
  • 9
  • 7
  • 3
Cells
  • [10,90,70,30]
  • [3,27,21,9]
  • [9,81,63,27]
  • [8,72,56,24]

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [3, 4, 5, 7], Column headers: [9, 10, 6, 10]

Show answer

Answer: Row 3: [27, 30, 18, 30]; Row 4: [36, 40, 24, 40]; Row 5: [45, 50, 30, 50]; Row 7: [63, 70, 42, 70]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 3
  • 4
  • 5
  • 7
ColHeaders
  • 9
  • 10
  • 6
  • 10
Cells
  • [27,30,18,30]
  • [36,40,24,40]
  • [45,50,30,50]
  • [63,70,42,70]