hard 4×4 Set 77 Form Exercise

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [1, 8, 10, 3], Column headers: [8, 4, 8, 3]

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Answer: Row 1: [9, 5, 9, 4]; Row 8: [16, 12, 16, 11]; Row 10: [18, 14, 18, 13]; Row 3: [11, 7, 11, 6]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 1
  • 8
  • 10
  • 3
ColHeaders
  • 8
  • 4
  • 8
  • 3
Cells
  • [9,5,9,4]
  • [16,12,16,11]
  • [18,14,18,13]
  • [11,7,11,6]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [10, 8, 6, 3], Column headers: [9, 1, 9, 2]

Show answer

Answer: Row 10: [1, 9, 1, 8]; Row 8: [1, 7, 1, 6]; Row 6: [3, 5, 3, 4]; Row 3: [6, 2, 6, 1]

SubType
speed-grid
Difficulty
hard
Operation
-
RowHeaders
  • 10
  • 8
  • 6
  • 3
ColHeaders
  • 9
  • 1
  • 9
  • 2
Cells
  • [1,9,1,8]
  • [1,7,1,6]
  • [3,5,3,4]
  • [6,2,6,1]