hard 4×4 Set 28 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [8, 9, 7, 9], Column headers: [9, 6, 7, 4]

Show answer

Answer: Row 8: [72, 48, 56, 32]; Row 9: [81, 54, 63, 36]; Row 7: [63, 42, 49, 28]; Row 9: [81, 54, 63, 36]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 8
  • 9
  • 7
  • 9
ColHeaders
  • 9
  • 6
  • 7
  • 4
Cells
  • [72,48,56,32]
  • [81,54,63,36]
  • [63,42,49,28]
  • [81,54,63,36]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [10, 1, 6, 6], Column headers: [6, 5, 3, 10]

Show answer

Answer: Row 10: [4, 5, 7, 0]; Row 1: [5, 4, 2, 9]; Row 6: [0, 1, 3, 4]; Row 6: [0, 1, 3, 4]

SubType
speed-grid
Difficulty
hard
Operation
-
RowHeaders
  • 10
  • 1
  • 6
  • 6
ColHeaders
  • 6
  • 5
  • 3
  • 10
Cells
  • [4,5,7,0]
  • [5,4,2,9]
  • [0,1,3,4]
  • [0,1,3,4]