hard 4×4 Set 17 Form Exercise

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [3, 8, 6, 9], Column headers: [5, 8, 5, 10]

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Answer: Row 3: [15, 24, 15, 30]; Row 8: [40, 64, 40, 80]; Row 6: [30, 48, 30, 60]; Row 9: [45, 72, 45, 90]

SubType
speed-grid
Difficulty
hard
Operation
×
RowHeaders
  • 3
  • 8
  • 6
  • 9
ColHeaders
  • 5
  • 8
  • 5
  • 10
Cells
  • [15,24,15,30]
  • [40,64,40,80]
  • [30,48,30,60]
  • [45,72,45,90]

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [9, 10, 5, 1], Column headers: [4, 3, 1, 9]

Show answer

Answer: Row 9: [13, 12, 10, 18]; Row 10: [14, 13, 11, 19]; Row 5: [9, 8, 6, 14]; Row 1: [5, 4, 2, 10]

SubType
speed-grid
Difficulty
hard
Operation
+
RowHeaders
  • 9
  • 10
  • 5
  • 1
ColHeaders
  • 4
  • 3
  • 1
  • 9
Cells
  • [13,12,10,18]
  • [14,13,11,19]
  • [9,8,6,14]
  • [5,4,2,10]