medium Set 55 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [27, _] → [_, 15, 9] → [2, 10, 5, _]

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Answer: Row1[1]=51, Row4[4]=4, Row3[1]=12, Row2[2]=24

SubType
number-pyramid
Difficulty
medium
Levels
  • [51]
  • [27,24]
  • [12,15,9]
  • [2,10,5,4]
Base
  • 2
  • 10
  • 5
  • 4
TopValue
51
HiddenCells
  • {"r":0,"c":0,"v":51}
  • {"r":3,"c":3,"v":4}
  • {"r":2,"c":0,"v":12}
  • {"r":1,"c":1,"v":24}

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] → [9, _, _, 1]

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Answer: Row3[1]=11, Row4[2]=2, Row1[1]=19, Row4[3]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [19]
  • [14,5]
  • [11,3,2]
  • [9,2,1,1]
Base
  • 9
  • 2
  • 1
  • 1
TopValue
19
HiddenCells
  • {"r":2,"c":0,"v":11}
  • {"r":3,"c":1,"v":2}
  • {"r":0,"c":0,"v":19}
  • {"r":3,"c":2,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [48] → [21, 27] → [9, _, _] → [5, _, 8, _]

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Answer: Row3[2]=12, Row3[3]=15, Row4[2]=4, Row4[4]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [48]
  • [21,27]
  • [9,12,15]
  • [5,4,8,7]
Base
  • 5
  • 4
  • 8
  • 7
TopValue
48
HiddenCells
  • {"r":2,"c":1,"v":12}
  • {"r":2,"c":2,"v":15}
  • {"r":3,"c":1,"v":4}
  • {"r":3,"c":3,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [33] → [22, 11] → [_, 7, 4] → [_, _, _, 2]

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Answer: Row4[2]=5, Row3[1]=15, Row4[3]=2, Row4[1]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [33]
  • [22,11]
  • [15,7,4]
  • [10,5,2,2]
Base
  • 10
  • 5
  • 2
  • 2
TopValue
33
HiddenCells
  • {"r":3,"c":1,"v":5}
  • {"r":2,"c":0,"v":15}
  • {"r":3,"c":2,"v":2}
  • {"r":3,"c":0,"v":10}