hard 4×4 Set 99 Form Exercise

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [9, 9, 1, 3], Column headers: [4, 2, 9, 3]

Show answer

Answer: Row 9: [13, 11, 18, 12]; Row 9: [13, 11, 18, 12]; Row 1: [5, 3, 10, 4]; Row 3: [7, 5, 12, 6]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 9
  • 9
  • 1
  • 3
ColHeaders
  • 4
  • 2
  • 9
  • 3
Cells
  • [13,11,18,12]
  • [13,11,18,12]
  • [5,3,10,4]
  • [7,5,12,6]

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

Show answer

Answer: Row 9: [36, 81, 81, 45]; Row 3: [12, 27, 27, 15]; Row 9: [36, 81, 81, 45]; Row 5: [20, 45, 45, 25]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 9
  • 3
  • 9
  • 5
ColHeaders
  • 4
  • 9
  • 9
  • 5
Cells
  • [36,81,81,45]
  • [12,27,27,15]
  • [36,81,81,45]
  • [20,45,45,25]