hard 4×4 Set 90 Form Exercise

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [8, 3, 10, 2], Column headers: [9, 4, 9, 10]

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Answer: Row 8: [17, 12, 17, 18]; Row 3: [12, 7, 12, 13]; Row 10: [19, 14, 19, 20]; Row 2: [11, 6, 11, 12]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 8
  • 3
  • 10
  • 2
ColHeaders
  • 9
  • 4
  • 9
  • 10
Cells
  • [17,12,17,18]
  • [12,7,12,13]
  • [19,14,19,20]
  • [11,6,11,12]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [4, 2, 8, 4], Column headers: [5, 9, 5, 7]

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Answer: Row 4: [9, 13, 9, 11]; Row 2: [7, 11, 7, 9]; Row 8: [13, 17, 13, 15]; Row 4: [9, 13, 9, 11]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 4
  • 2
  • 8
  • 4
ColHeaders
  • 5
  • 9
  • 5
  • 7
Cells
  • [9,13,9,11]
  • [7,11,7,9]
  • [13,17,13,15]
  • [9,13,9,11]