medium 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): [47] → [27, 20] → [_, _, 8] → [_, 7, 5, _]

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Answer: Row3[2]=12, Row3[1]=15, Row4[4]=3, Row4[1]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [47]
  • [27,20]
  • [15,12,8]
  • [8,7,5,3]
Base
  • 8
  • 7
  • 5
  • 3
TopValue
47
HiddenCells
  • {"r":2,"c":1,"v":12}
  • {"r":2,"c":0,"v":15}
  • {"r":3,"c":3,"v":3}
  • {"r":3,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [46] → [_, 24] → [10, _, 12] → [7, _, 9, _]

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Answer: Row4[2]=3, Row4[4]=3, Row2[1]=22, Row3[2]=12

SubType
number-pyramid
Difficulty
medium
Levels
  • [46]
  • [22,24]
  • [10,12,12]
  • [7,3,9,3]
Base
  • 7
  • 3
  • 9
  • 3
TopValue
46
HiddenCells
  • {"r":3,"c":1,"v":3}
  • {"r":3,"c":3,"v":3}
  • {"r":1,"c":0,"v":22}
  • {"r":2,"c":1,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [14] → [5, _] → [3, 2, _] → [_, _, 1, 6]

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Answer: Row4[2]=1, Row2[2]=9, Row4[1]=2, Row3[3]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [14]
  • [5,9]
  • [3,2,7]
  • [2,1,1,6]
Base
  • 2
  • 1
  • 1
  • 6
TopValue
14
HiddenCells
  • {"r":3,"c":1,"v":1}
  • {"r":1,"c":1,"v":9}
  • {"r":3,"c":0,"v":2}
  • {"r":2,"c":2,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [14, _] → [_, _, 6] → [9, 2, 1, 5]

Show answer

Answer: Row1[1]=23, Row3[1]=11, Row2[2]=9, Row3[2]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [23]
  • [14,9]
  • [11,3,6]
  • [9,2,1,5]
Base
  • 9
  • 2
  • 1
  • 5
TopValue
23
HiddenCells
  • {"r":0,"c":0,"v":23}
  • {"r":2,"c":0,"v":11}
  • {"r":1,"c":1,"v":9}
  • {"r":2,"c":1,"v":3}