hard Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [74] → [44, _] → [29, 15, _] → [19, _, 5, _] → [_, _, _, 4, _]

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Answer: Row4[2]=10, Row2[2]=30, Row3[3]=15, Row5[1]=10, Row4[4]=10, Row5[5]=6, Row5[3]=1, Row5[2]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [74]
  • [44,30]
  • [29,15,15]
  • [19,10,5,10]
  • [10,9,1,4,6]
Base
  • 10
  • 9
  • 1
  • 4
  • 6
TopValue
74
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":1,"c":1,"v":30}
  • {"r":2,"c":2,"v":15}
  • {"r":4,"c":0,"v":10}
  • {"r":3,"c":3,"v":10}
  • {"r":4,"c":4,"v":6}
  • {"r":4,"c":2,"v":1}
  • {"r":4,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [69] → [36, _] → [_, _, 15] → [_, _, 9, 6] → [_, _, 8, _, 5]

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Answer: Row4[2]=9, Row3[2]=18, Row5[4]=1, Row2[2]=33, Row5[2]=1, Row5[1]=8, Row4[1]=9, Row3[1]=18

SubType
number-pyramid
Difficulty
hard
Levels
  • [69]
  • [36,33]
  • [18,18,15]
  • [9,9,9,6]
  • [8,1,8,1,5]
Base
  • 8
  • 1
  • 8
  • 1
  • 5
TopValue
69
HiddenCells
  • {"r":3,"c":1,"v":9}
  • {"r":2,"c":1,"v":18}
  • {"r":4,"c":3,"v":1}
  • {"r":1,"c":1,"v":33}
  • {"r":4,"c":1,"v":1}
  • {"r":4,"c":0,"v":8}
  • {"r":3,"c":0,"v":9}
  • {"r":2,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [59, 53] → [31, _, 25] → [17, _, _, _] → [_, _, 4, _, 1]

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Answer: Row1[1]=112, Row4[2]=14, Row5[1]=7, Row3[2]=28, Row5[4]=10, Row4[3]=14, Row5[2]=10, Row4[4]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [112]
  • [59,53]
  • [31,28,25]
  • [17,14,14,11]
  • [7,10,4,10,1]
Base
  • 7
  • 10
  • 4
  • 10
  • 1
TopValue
112
HiddenCells
  • {"r":0,"c":0,"v":112}
  • {"r":3,"c":1,"v":14}
  • {"r":4,"c":0,"v":7}
  • {"r":2,"c":1,"v":28}
  • {"r":4,"c":3,"v":10}
  • {"r":3,"c":2,"v":14}
  • {"r":4,"c":1,"v":10}
  • {"r":3,"c":3,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [95] → [_, _] → [_, _, 30] → [13, 10, _, _] → [4, _, 1, 10, _]

Show answer

Answer: Row2[1]=44, Row2[2]=51, Row4[3]=11, Row4[4]=19, Row3[1]=23, Row5[5]=9, Row5[2]=9, Row3[2]=21

SubType
number-pyramid
Difficulty
hard
Levels
  • [95]
  • [44,51]
  • [23,21,30]
  • [13,10,11,19]
  • [4,9,1,10,9]
Base
  • 4
  • 9
  • 1
  • 10
  • 9
TopValue
95
HiddenCells
  • {"r":1,"c":0,"v":44}
  • {"r":1,"c":1,"v":51}
  • {"r":3,"c":2,"v":11}
  • {"r":3,"c":3,"v":19}
  • {"r":2,"c":0,"v":23}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":1,"v":9}
  • {"r":2,"c":1,"v":21}