medium Set 75 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [_, _] → [9, 6, _] → [4, _, 1, 5]

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Answer: Row3[3]=6, Row2[2]=12, Row4[2]=5, Row2[1]=15

SubType
number-pyramid
Difficulty
medium
Levels
  • [27]
  • [15,12]
  • [9,6,6]
  • [4,5,1,5]
Base
  • 4
  • 5
  • 1
  • 5
TopValue
27
HiddenCells
  • {"r":2,"c":2,"v":6}
  • {"r":1,"c":1,"v":12}
  • {"r":3,"c":1,"v":5}
  • {"r":1,"c":0,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [55] → [26, 29] → [12, _, 15] → [_, 4, _, _]

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Answer: Row4[4]=5, Row4[1]=8, Row4[3]=10, Row3[2]=14

SubType
number-pyramid
Difficulty
medium
Levels
  • [55]
  • [26,29]
  • [12,14,15]
  • [8,4,10,5]
Base
  • 8
  • 4
  • 10
  • 5
TopValue
55
HiddenCells
  • {"r":3,"c":3,"v":5}
  • {"r":3,"c":0,"v":8}
  • {"r":3,"c":2,"v":10}
  • {"r":2,"c":1,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [12, 18, 12] → [3, _, 9, 3]

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Answer: Row4[2]=9, Row2[2]=30, Row1[1]=60, Row2[1]=30

SubType
number-pyramid
Difficulty
medium
Levels
  • [60]
  • [30,30]
  • [12,18,12]
  • [3,9,9,3]
Base
  • 3
  • 9
  • 9
  • 3
TopValue
60
HiddenCells
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":1,"v":30}
  • {"r":0,"c":0,"v":60}
  • {"r":1,"c":0,"v":30}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [35] → [15, 20] → [_, 9, 11] → [4, _, _, _]

Show answer

Answer: Row3[1]=6, Row4[2]=2, Row4[4]=4, Row4[3]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [35]
  • [15,20]
  • [6,9,11]
  • [4,2,7,4]
Base
  • 4
  • 2
  • 7
  • 4
TopValue
35
HiddenCells
  • {"r":2,"c":0,"v":6}
  • {"r":3,"c":1,"v":2}
  • {"r":3,"c":3,"v":4}
  • {"r":3,"c":2,"v":7}