medium Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [34] → [21, 13] → [_, _, 4] → [_, 7, _, 2]

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Answer: Row4[1]=5, Row3[2]=9, Row3[1]=12, Row4[3]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [34]
  • [21,13]
  • [12,9,4]
  • [5,7,2,2]
Base
  • 5
  • 7
  • 2
  • 2
TopValue
34
HiddenCells
  • {"r":3,"c":0,"v":5}
  • {"r":2,"c":1,"v":9}
  • {"r":2,"c":0,"v":12}
  • {"r":3,"c":2,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 25] → [_, 13, _] → [6, 7, 6, 6]

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Answer: Row3[1]=13, Row1[1]=51, Row2[1]=26, Row3[3]=12

SubType
number-pyramid
Difficulty
medium
Levels
  • [51]
  • [26,25]
  • [13,13,12]
  • [6,7,6,6]
Base
  • 6
  • 7
  • 6
  • 6
TopValue
51
HiddenCells
  • {"r":2,"c":0,"v":13}
  • {"r":0,"c":0,"v":51}
  • {"r":1,"c":0,"v":26}
  • {"r":2,"c":2,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [25, 33] → [_, 15, _] → [5, 5, 10, _]

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Answer: Row3[3]=18, Row4[4]=8, Row3[1]=10, Row1[1]=58

SubType
number-pyramid
Difficulty
medium
Levels
  • [58]
  • [25,33]
  • [10,15,18]
  • [5,5,10,8]
Base
  • 5
  • 5
  • 10
  • 8
TopValue
58
HiddenCells
  • {"r":2,"c":2,"v":18}
  • {"r":3,"c":3,"v":8}
  • {"r":2,"c":0,"v":10}
  • {"r":0,"c":0,"v":58}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [21, 28] → [8, 13, 15] → [3, _, _, _]

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Answer: Row4[4]=7, Row4[3]=8, Row4[2]=5, Row1[1]=49

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [21,28]
  • [8,13,15]
  • [3,5,8,7]
Base
  • 3
  • 5
  • 8
  • 7
TopValue
49
HiddenCells
  • {"r":3,"c":3,"v":7}
  • {"r":3,"c":2,"v":8}
  • {"r":3,"c":1,"v":5}
  • {"r":0,"c":0,"v":49}