expert 4×4 Set 21 Form Exercise

Speed Grid (+): Fill in each cell by applying the operation to the row and column headers. Row headers: [8, 5, 4], Column headers: [1, 3, 8]

Show answer

Answer: Row 8: [9, 11, 16]; Row 5: [6, 8, 13]; Row 4: [5, 7, 12]

SubType
speed-grid
Difficulty
expert
Operation
+
RowHeaders
  • 8
  • 5
  • 4
ColHeaders
  • 1
  • 3
  • 8
Cells
  • [9,11,16]
  • [6,8,13]
  • [5,7,12]

Speed Grid (×): Fill in each cell by applying the operation to the row and column headers. Row headers: [9, 8, 7], Column headers: [2, 8, 6]

Show answer

Answer: Row 9: [18, 72, 54]; Row 8: [16, 64, 48]; Row 7: [14, 56, 42]

SubType
speed-grid
Difficulty
expert
Operation
×
RowHeaders
  • 9
  • 8
  • 7
ColHeaders
  • 2
  • 8
  • 6
Cells
  • [18,72,54]
  • [16,64,48]
  • [14,56,42]