hard 4×4 Set 30 Form Exercise

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [2, 9, 4, 7], Column headers: [6, 4, 10, 10]

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Answer: Row 2: [8, 6, 12, 12]; Row 9: [15, 13, 19, 19]; Row 4: [10, 8, 14, 14]; Row 7: [13, 11, 17, 17]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 2
  • 9
  • 4
  • 7
ColHeaders
  • 6
  • 4
  • 10
  • 10
Cells
  • [8,6,12,12]
  • [15,13,19,19]
  • [10,8,14,14]
  • [13,11,17,17]

Speed Grid (-): Fill in each cell by applying the operation to the row and column headers. Row headers: [5, 5, 3, 3], Column headers: [6, 2, 4, 1]

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Answer: Row 5: [1, 3, 1, 4]; Row 5: [1, 3, 1, 4]; Row 3: [3, 1, 1, 2]; Row 3: [3, 1, 1, 2]

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