hard Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [42, _] → [_, 17, 14] → [14, _, _, _] → [7, 7, _, _, 6]

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Answer: Row5[4]=2, Row5[3]=4, Row4[2]=11, Row4[4]=8, Row2[2]=31, Row3[1]=25, Row4[3]=6, Row1[1]=73

SubType
number-pyramid
Difficulty
hard
Levels
  • [73]
  • [42,31]
  • [25,17,14]
  • [14,11,6,8]
  • [7,7,4,2,6]
Base
  • 7
  • 7
  • 4
  • 2
  • 6
TopValue
73
HiddenCells
  • {"r":4,"c":3,"v":2}
  • {"r":4,"c":2,"v":4}
  • {"r":3,"c":1,"v":11}
  • {"r":3,"c":3,"v":8}
  • {"r":1,"c":1,"v":31}
  • {"r":2,"c":0,"v":25}
  • {"r":3,"c":2,"v":6}
  • {"r":0,"c":0,"v":73}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [105] → [52, _] → [24, _, _] → [10, _, 14, 11] → [_, _, 9, _, _]

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Answer: Row3[3]=25, Row5[5]=6, Row3[2]=28, Row4[2]=14, Row2[2]=53, Row5[2]=5, Row5[1]=5, Row5[4]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [105]
  • [52,53]
  • [24,28,25]
  • [10,14,14,11]
  • [5,5,9,5,6]
Base
  • 5
  • 5
  • 9
  • 5
  • 6
TopValue
105
HiddenCells
  • {"r":2,"c":2,"v":25}
  • {"r":4,"c":4,"v":6}
  • {"r":2,"c":1,"v":28}
  • {"r":3,"c":1,"v":14}
  • {"r":1,"c":1,"v":53}
  • {"r":4,"c":1,"v":5}
  • {"r":4,"c":0,"v":5}
  • {"r":4,"c":3,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [37, _] → [21, 16, 14] → [12, _, _, _] → [8, _, 5, _, _]

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Answer: Row4[4]=7, Row4[2]=9, Row5[2]=4, Row4[3]=7, Row5[4]=2, Row5[5]=5, Row1[1]=67, Row2[2]=30

SubType
number-pyramid
Difficulty
hard
Levels
  • [67]
  • [37,30]
  • [21,16,14]
  • [12,9,7,7]
  • [8,4,5,2,5]
Base
  • 8
  • 4
  • 5
  • 2
  • 5
TopValue
67
HiddenCells
  • {"r":3,"c":3,"v":7}
  • {"r":3,"c":1,"v":9}
  • {"r":4,"c":1,"v":4}
  • {"r":3,"c":2,"v":7}
  • {"r":4,"c":3,"v":2}
  • {"r":4,"c":4,"v":5}
  • {"r":0,"c":0,"v":67}
  • {"r":1,"c":1,"v":30}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [70] → [_, 44] → [10, _, _] → [_, _, _, _] → [5, 1, _, 9, 7]

Show answer

Answer: Row5[3]=3, Row4[2]=4, Row4[3]=12, Row4[4]=16, Row2[1]=26, Row3[2]=16, Row3[3]=28, Row4[1]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [70]
  • [26,44]
  • [10,16,28]
  • [6,4,12,16]
  • [5,1,3,9,7]
Base
  • 5
  • 1
  • 3
  • 9
  • 7
TopValue
70
HiddenCells
  • {"r":4,"c":2,"v":3}
  • {"r":3,"c":1,"v":4}
  • {"r":3,"c":2,"v":12}
  • {"r":3,"c":3,"v":16}
  • {"r":1,"c":0,"v":26}
  • {"r":2,"c":1,"v":16}
  • {"r":2,"c":2,"v":28}
  • {"r":3,"c":0,"v":6}