hard 4×4 Set 73 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [3, 9, 5, 8], Column headers: [6, 4, 3, 8]

Show answer

Answer: Row 3: [18, 12, 9, 24]; Row 9: [54, 36, 27, 72]; Row 5: [30, 20, 15, 40]; Row 8: [48, 32, 24, 64]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 3
  • 9
  • 5
  • 8
ColHeaders
  • 6
  • 4
  • 3
  • 8
Cells
  • [18,12,9,24]
  • [54,36,27,72]
  • [30,20,15,40]
  • [48,32,24,64]

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

Show answer

Answer: Row 8: [4, 3, 7, 1]; Row 4: [0, 1, 3, 3]; Row 7: [3, 2, 6, 0]; Row 8: [4, 3, 7, 1]

SubType
speed-grid
Difficulty
hard
Operation
-
RowHeaders
  • 8
  • 4
  • 7
  • 8
ColHeaders
  • 4
  • 5
  • 1
  • 7
Cells
  • [4,3,7,1]
  • [0,1,3,3]
  • [3,2,6,0]
  • [4,3,7,1]