medium Set 21 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 17] → [12, 11, _] → [3, _, 2, 4]

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Answer: Row3[3]=6, Row2[1]=23, Row4[2]=9, Row1[1]=40

SubType
number-pyramid
Difficulty
medium
Levels
  • [40]
  • [23,17]
  • [12,11,6]
  • [3,9,2,4]
Base
  • 3
  • 9
  • 2
  • 4
TopValue
40
HiddenCells
  • {"r":2,"c":2,"v":6}
  • {"r":1,"c":0,"v":23}
  • {"r":3,"c":1,"v":9}
  • {"r":0,"c":0,"v":40}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [14, _] → [_, _, 9] → [_, 1, 4, 5]

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Answer: Row3[2]=5, Row3[1]=9, Row4[1]=8, Row2[2]=14

SubType
number-pyramid
Difficulty
medium
Levels
  • [28]
  • [14,14]
  • [9,5,9]
  • [8,1,4,5]
Base
  • 8
  • 1
  • 4
  • 5
TopValue
28
HiddenCells
  • {"r":2,"c":1,"v":5}
  • {"r":2,"c":0,"v":9}
  • {"r":3,"c":0,"v":8}
  • {"r":1,"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): [25] → [_, 12] → [6, 7, 5] → [_, _, 4, _]

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Answer: Row4[4]=1, Row2[1]=13, Row4[2]=3, Row4[1]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [25]
  • [13,12]
  • [6,7,5]
  • [3,3,4,1]
Base
  • 3
  • 3
  • 4
  • 1
TopValue
25
HiddenCells
  • {"r":3,"c":3,"v":1}
  • {"r":1,"c":0,"v":13}
  • {"r":3,"c":1,"v":3}
  • {"r":3,"c":0,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 20] → [16, 13, 7] → [_, _, 4, 3]

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Answer: Row4[2]=9, Row1[1]=49, Row4[1]=7, Row2[1]=29

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [29,20]
  • [16,13,7]
  • [7,9,4,3]
Base
  • 7
  • 9
  • 4
  • 3
TopValue
49
HiddenCells
  • {"r":3,"c":1,"v":9}
  • {"r":0,"c":0,"v":49}
  • {"r":3,"c":0,"v":7}
  • {"r":1,"c":0,"v":29}