hard Set 87 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 33] → [24, 15, _] → [15, _, 6, _] → [_, 6, 3, _, _]

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Answer: Row4[2]=9, Row2[1]=39, Row5[5]=9, Row1[1]=72, Row4[4]=12, Row5[1]=9, Row3[3]=18, Row5[4]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [72]
  • [39,33]
  • [24,15,18]
  • [15,9,6,12]
  • [9,6,3,3,9]
Base
  • 9
  • 6
  • 3
  • 3
  • 9
TopValue
72
HiddenCells
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":0,"v":39}
  • {"r":4,"c":4,"v":9}
  • {"r":0,"c":0,"v":72}
  • {"r":3,"c":3,"v":12}
  • {"r":4,"c":0,"v":9}
  • {"r":2,"c":2,"v":18}
  • {"r":4,"c":3,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [137] → [68, _] → [34, _, 35] → [_, _, _, 17] → [_, _, 8, _, 7]

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Answer: Row4[3]=18, Row2[2]=69, Row5[4]=10, Row5[2]=8, Row3[2]=34, Row5[1]=10, Row4[1]=18, Row4[2]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [137]
  • [68,69]
  • [34,34,35]
  • [18,16,18,17]
  • [10,8,8,10,7]
Base
  • 10
  • 8
  • 8
  • 10
  • 7
TopValue
137
HiddenCells
  • {"r":3,"c":2,"v":18}
  • {"r":1,"c":1,"v":69}
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":1,"v":8}
  • {"r":2,"c":1,"v":34}
  • {"r":4,"c":0,"v":10}
  • {"r":3,"c":0,"v":18}
  • {"r":3,"c":1,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [103] → [51, _] → [_, _, _] → [10, _, _, 12] → [6, _, 10, 3, _]

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Answer: Row3[1]=24, Row5[2]=4, Row4[2]=14, Row2[2]=52, Row5[5]=9, Row4[3]=13, Row3[2]=27, Row3[3]=25

SubType
number-pyramid
Difficulty
hard
Levels
  • [103]
  • [51,52]
  • [24,27,25]
  • [10,14,13,12]
  • [6,4,10,3,9]
Base
  • 6
  • 4
  • 10
  • 3
  • 9
TopValue
103
HiddenCells
  • {"r":2,"c":0,"v":24}
  • {"r":4,"c":1,"v":4}
  • {"r":3,"c":1,"v":14}
  • {"r":1,"c":1,"v":52}
  • {"r":4,"c":4,"v":9}
  • {"r":3,"c":2,"v":13}
  • {"r":2,"c":1,"v":27}
  • {"r":2,"c":2,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [60] → [_, 29] → [17, 14, _] → [_, _, 7, _] → [7, _, _, _, 5]

Show answer

Answer: Row5[4]=3, Row3[3]=15, Row2[1]=31, Row4[2]=7, Row4[1]=10, Row4[4]=8, Row5[3]=4, Row5[2]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [60]
  • [31,29]
  • [17,14,15]
  • [10,7,7,8]
  • [7,3,4,3,5]
Base
  • 7
  • 3
  • 4
  • 3
  • 5
TopValue
60
HiddenCells
  • {"r":4,"c":3,"v":3}
  • {"r":2,"c":2,"v":15}
  • {"r":1,"c":0,"v":31}
  • {"r":3,"c":1,"v":7}
  • {"r":3,"c":0,"v":10}
  • {"r":3,"c":3,"v":8}
  • {"r":4,"c":2,"v":4}
  • {"r":4,"c":1,"v":3}