hard 4×4 Set 100 Form Exercise

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [1, 4, 9, 3], Column headers: [3, 1, 1, 7]

Show answer

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

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

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [5, 1, 8, 9], Column headers: [2, 8, 5, 5]

Show answer

Answer: Row 5: [10, 40, 25, 25]; Row 1: [2, 8, 5, 5]; Row 8: [16, 64, 40, 40]; Row 9: [18, 72, 45, 45]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 5
  • 1
  • 8
  • 9
ColHeaders
  • 2
  • 8
  • 5
  • 5
Cells
  • [10,40,25,25]
  • [2,8,5,5]
  • [16,64,40,40]
  • [18,72,45,45]