hard 4×4 Set 100 Form Exercise

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

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Answer: Row 4: [40, 36, 8, 36]; Row 7: [70, 63, 14, 63]; Row 10: [100, 90, 20, 90]; Row 7: [70, 63, 14, 63]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 4
  • 7
  • 10
  • 7
ColHeaders
  • 10
  • 9
  • 2
  • 9
Cells
  • [40,36,8,36]
  • [70,63,14,63]
  • [100,90,20,90]
  • [70,63,14,63]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [9, 6, 4, 5], Column headers: [9, 1, 8, 7]

Show answer

Answer: Row 9: [18, 10, 17, 16]; Row 6: [15, 7, 14, 13]; Row 4: [13, 5, 12, 11]; Row 5: [14, 6, 13, 12]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 9
  • 6
  • 4
  • 5
ColHeaders
  • 9
  • 1
  • 8
  • 7
Cells
  • [18,10,17,16]
  • [15,7,14,13]
  • [13,5,12,11]
  • [14,6,13,12]