hard Set 42 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 21] → [_, 11, _] → [_, 8, _, 7] → [_, 7, _, 2, 5]

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Answer: Row4[3]=3, Row1[1]=51, Row5[3]=1, Row4[1]=11, Row3[1]=19, Row5[1]=4, Row2[1]=30, Row3[3]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [51]
  • [30,21]
  • [19,11,10]
  • [11,8,3,7]
  • [4,7,1,2,5]
Base
  • 4
  • 7
  • 1
  • 2
  • 5
TopValue
51
HiddenCells
  • {"r":3,"c":2,"v":3}
  • {"r":0,"c":0,"v":51}
  • {"r":4,"c":2,"v":1}
  • {"r":3,"c":0,"v":11}
  • {"r":2,"c":0,"v":19}
  • {"r":4,"c":0,"v":4}
  • {"r":1,"c":0,"v":30}
  • {"r":2,"c":2,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [95] → [_, 43] → [_, _, _] → [_, 16, _, 11] → [_, 9, 7, 1, _]

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Answer: Row4[1]=12, Row3[1]=28, Row2[1]=52, Row5[1]=3, Row3[3]=19, Row3[2]=24, Row5[5]=10, Row4[3]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [95]
  • [52,43]
  • [28,24,19]
  • [12,16,8,11]
  • [3,9,7,1,10]
Base
  • 3
  • 9
  • 7
  • 1
  • 10
TopValue
95
HiddenCells
  • {"r":3,"c":0,"v":12}
  • {"r":2,"c":0,"v":28}
  • {"r":1,"c":0,"v":52}
  • {"r":4,"c":0,"v":3}
  • {"r":2,"c":2,"v":19}
  • {"r":2,"c":1,"v":24}
  • {"r":4,"c":4,"v":10}
  • {"r":3,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [105] → [_, 56] → [24, 25, _] → [_, _, 13, 18] → [5, _, _, _, _]

Show answer

Answer: Row3[3]=31, Row4[2]=12, Row4[1]=12, Row5[2]=7, Row5[3]=5, Row5[4]=8, Row2[1]=49, Row5[5]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [105]
  • [49,56]
  • [24,25,31]
  • [12,12,13,18]
  • [5,7,5,8,10]
Base
  • 5
  • 7
  • 5
  • 8
  • 10
TopValue
105
HiddenCells
  • {"r":2,"c":2,"v":31}
  • {"r":3,"c":1,"v":12}
  • {"r":3,"c":0,"v":12}
  • {"r":4,"c":1,"v":7}
  • {"r":4,"c":2,"v":5}
  • {"r":4,"c":3,"v":8}
  • {"r":1,"c":0,"v":49}
  • {"r":4,"c":4,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [29, _, 30] → [12, _, 15, _] → [4, _, 9, _, 9]

Show answer

Answer: Row3[2]=32, Row1[1]=123, Row4[2]=17, Row5[2]=8, Row5[4]=6, Row4[4]=15, Row2[1]=61, Row2[2]=62

SubType
number-pyramid
Difficulty
hard
Levels
  • [123]
  • [61,62]
  • [29,32,30]
  • [12,17,15,15]
  • [4,8,9,6,9]
Base
  • 4
  • 8
  • 9
  • 6
  • 9
TopValue
123
HiddenCells
  • {"r":2,"c":1,"v":32}
  • {"r":0,"c":0,"v":123}
  • {"r":3,"c":1,"v":17}
  • {"r":4,"c":1,"v":8}
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":3,"v":15}
  • {"r":1,"c":0,"v":61}
  • {"r":1,"c":1,"v":62}