hard 4×4 Set 57 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 4, 8, 10], Column headers: [1, 7, 6, 8]

Show answer

Answer: Row 2: [2, 14, 12, 16]; Row 4: [4, 28, 24, 32]; Row 8: [8, 56, 48, 64]; Row 10: [10, 70, 60, 80]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 2
  • 4
  • 8
  • 10
ColHeaders
  • 1
  • 7
  • 6
  • 8
Cells
  • [2,14,12,16]
  • [4,28,24,32]
  • [8,56,48,64]
  • [10,70,60,80]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [9, 2, 4, 5], Column headers: [9, 3, 3, 9]

Show answer

Answer: Row 9: [18, 12, 12, 18]; Row 2: [11, 5, 5, 11]; Row 4: [13, 7, 7, 13]; Row 5: [14, 8, 8, 14]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 9
  • 2
  • 4
  • 5
ColHeaders
  • 9
  • 3
  • 3
  • 9
Cells
  • [18,12,12,18]
  • [11,5,5,11]
  • [13,7,7,13]
  • [14,8,8,14]