medium Set 51 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [53] → [_, 27] → [_, _, 14] → [_, 4, 9, 5]

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Answer: Row3[2]=13, Row3[1]=13, Row2[1]=26, Row4[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [53]
  • [26,27]
  • [13,13,14]
  • [9,4,9,5]
Base
  • 9
  • 4
  • 9
  • 5
TopValue
53
HiddenCells
  • {"r":2,"c":1,"v":13}
  • {"r":2,"c":0,"v":13}
  • {"r":1,"c":0,"v":26}
  • {"r":3,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [69] → [_, 33] → [18, 18, _] → [_, 8, _, 5]

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Answer: Row4[1]=10, Row3[3]=15, Row4[3]=10, Row2[1]=36

SubType
number-pyramid
Difficulty
medium
Levels
  • [69]
  • [36,33]
  • [18,18,15]
  • [10,8,10,5]
Base
  • 10
  • 8
  • 10
  • 5
TopValue
69
HiddenCells
  • {"r":3,"c":0,"v":10}
  • {"r":2,"c":2,"v":15}
  • {"r":3,"c":2,"v":10}
  • {"r":1,"c":0,"v":36}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [53] → [_, 28] → [_, 14, _] → [2, 9, _, 9]

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Answer: Row3[1]=11, Row4[3]=5, Row3[3]=14, Row2[1]=25

SubType
number-pyramid
Difficulty
medium
Levels
  • [53]
  • [25,28]
  • [11,14,14]
  • [2,9,5,9]
Base
  • 2
  • 9
  • 5
  • 9
TopValue
53
HiddenCells
  • {"r":2,"c":0,"v":11}
  • {"r":3,"c":2,"v":5}
  • {"r":2,"c":2,"v":14}
  • {"r":1,"c":0,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [21, 9] → [_, 6, _] → [10, 5, _, 2]

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Answer: Row1[1]=30, Row3[1]=15, Row3[3]=3, Row4[3]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [30]
  • [21,9]
  • [15,6,3]
  • [10,5,1,2]
Base
  • 10
  • 5
  • 1
  • 2
TopValue
30
HiddenCells
  • {"r":0,"c":0,"v":30}
  • {"r":2,"c":0,"v":15}
  • {"r":2,"c":2,"v":3}
  • {"r":3,"c":2,"v":1}