hard Set 20 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 52] → [_, _, 26] → [13, 14, _, 14] → [_, 10, 4, _, _]

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Answer: Row5[5]=6, Row3[2]=26, Row5[1]=3, Row4[3]=12, Row3[1]=27, Row5[4]=8, Row2[1]=53, Row1[1]=105

SubType
number-pyramid
Difficulty
hard
Levels
  • [105]
  • [53,52]
  • [27,26,26]
  • [13,14,12,14]
  • [3,10,4,8,6]
Base
  • 3
  • 10
  • 4
  • 8
  • 6
TopValue
105
HiddenCells
  • {"r":4,"c":4,"v":6}
  • {"r":2,"c":1,"v":26}
  • {"r":4,"c":0,"v":3}
  • {"r":3,"c":2,"v":12}
  • {"r":2,"c":0,"v":27}
  • {"r":4,"c":3,"v":8}
  • {"r":1,"c":0,"v":53}
  • {"r":0,"c":0,"v":105}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [82] → [_, 45] → [_, _, _] → [_, 10, _, 11] → [1, _, _, 6, 5]

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Answer: Row3[1]=15, Row2[1]=37, Row3[3]=23, Row4[1]=5, Row5[3]=6, Row4[3]=12, Row5[2]=4, Row3[2]=22

SubType
number-pyramid
Difficulty
hard
Levels
  • [82]
  • [37,45]
  • [15,22,23]
  • [5,10,12,11]
  • [1,4,6,6,5]
Base
  • 1
  • 4
  • 6
  • 6
  • 5
TopValue
82
HiddenCells
  • {"r":2,"c":0,"v":15}
  • {"r":1,"c":0,"v":37}
  • {"r":2,"c":2,"v":23}
  • {"r":3,"c":0,"v":5}
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":2,"v":12}
  • {"r":4,"c":1,"v":4}
  • {"r":2,"c":1,"v":22}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [36, 36] → [_, 15, 21] → [15, _, _, 12] → [_, _, _, _, 4]

Show answer

Answer: Row5[1]=10, Row4[3]=9, Row4[2]=6, Row1[1]=72, Row5[4]=8, Row5[3]=1, Row5[2]=5, Row3[1]=21

SubType
number-pyramid
Difficulty
hard
Levels
  • [72]
  • [36,36]
  • [21,15,21]
  • [15,6,9,12]
  • [10,5,1,8,4]
Base
  • 10
  • 5
  • 1
  • 8
  • 4
TopValue
72
HiddenCells
  • {"r":4,"c":0,"v":10}
  • {"r":3,"c":2,"v":9}
  • {"r":3,"c":1,"v":6}
  • {"r":0,"c":0,"v":72}
  • {"r":4,"c":3,"v":8}
  • {"r":4,"c":2,"v":1}
  • {"r":4,"c":1,"v":5}
  • {"r":2,"c":0,"v":21}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [68] → [34, _] → [_, 17, _] → [_, _, _, 8] → [_, 6, 2, _, 1]

Show answer

Answer: Row4[2]=8, Row2[2]=34, Row3[3]=17, Row3[1]=17, Row4[1]=9, Row5[4]=7, Row5[1]=3, Row4[3]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [68]
  • [34,34]
  • [17,17,17]
  • [9,8,9,8]
  • [3,6,2,7,1]
Base
  • 3
  • 6
  • 2
  • 7
  • 1
TopValue
68
HiddenCells
  • {"r":3,"c":1,"v":8}
  • {"r":1,"c":1,"v":34}
  • {"r":2,"c":2,"v":17}
  • {"r":2,"c":0,"v":17}
  • {"r":3,"c":0,"v":9}
  • {"r":4,"c":3,"v":7}
  • {"r":4,"c":0,"v":3}
  • {"r":3,"c":2,"v":9}