hard 4×4 Set 62 Form Exercise

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [1, 7, 9, 8], Column headers: [2, 10, 8, 9]

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Answer: Row 1: [3, 11, 9, 10]; Row 7: [9, 17, 15, 16]; Row 9: [11, 19, 17, 18]; Row 8: [10, 18, 16, 17]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 1
  • 7
  • 9
  • 8
ColHeaders
  • 2
  • 10
  • 8
  • 9
Cells
  • [3,11,9,10]
  • [9,17,15,16]
  • [11,19,17,18]
  • [10,18,16,17]

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

Show answer

Answer: Row 10: [1, 7, 2, 1]; Row 1: [8, 2, 7, 8]; Row 9: [0, 6, 1, 0]; Row 10: [1, 7, 2, 1]

SubType
speed-grid
Difficulty
hard
Operation
-
RowHeaders
  • 10
  • 1
  • 9
  • 10
ColHeaders
  • 9
  • 3
  • 8
  • 9
Cells
  • [1,7,2,1]
  • [8,2,7,8]
  • [0,6,1,0]
  • [1,7,2,1]