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): [_] → [_, 21] → [7, _, 10] → [5, 2, 9, _]

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Answer: Row3[2]=11, Row4[4]=1, Row1[1]=39, Row2[1]=18

SubType
number-pyramid
Difficulty
medium
Levels
  • [39]
  • [18,21]
  • [7,11,10]
  • [5,2,9,1]
Base
  • 5
  • 2
  • 9
  • 1
TopValue
39
HiddenCells
  • {"r":2,"c":1,"v":11}
  • {"r":3,"c":3,"v":1}
  • {"r":0,"c":0,"v":39}
  • {"r":1,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [20, 26] → [9, _, 15] → [_, 3, 8, _]

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Answer: Row4[4]=7, Row4[1]=6, Row1[1]=46, Row3[2]=11

SubType
number-pyramid
Difficulty
medium
Levels
  • [46]
  • [20,26]
  • [9,11,15]
  • [6,3,8,7]
Base
  • 6
  • 3
  • 8
  • 7
TopValue
46
HiddenCells
  • {"r":3,"c":3,"v":7}
  • {"r":3,"c":0,"v":6}
  • {"r":0,"c":0,"v":46}
  • {"r":2,"c":1,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [27, 20] → [_, 12, 8] → [8, 7, _, _]

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Answer: Row4[3]=5, Row4[4]=3, Row1[1]=47, Row3[1]=15

SubType
number-pyramid
Difficulty
medium
Levels
  • [47]
  • [27,20]
  • [15,12,8]
  • [8,7,5,3]
Base
  • 8
  • 7
  • 5
  • 3
TopValue
47
HiddenCells
  • {"r":3,"c":2,"v":5}
  • {"r":3,"c":3,"v":3}
  • {"r":0,"c":0,"v":47}
  • {"r":2,"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): [47] → [19, 28] → [_, 10, _] → [_, 1, _, 9]

Show answer

Answer: Row3[3]=18, Row4[1]=8, Row4[3]=9, Row3[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [47]
  • [19,28]
  • [9,10,18]
  • [8,1,9,9]
Base
  • 8
  • 1
  • 9
  • 9
TopValue
47
HiddenCells
  • {"r":2,"c":2,"v":18}
  • {"r":3,"c":0,"v":8}
  • {"r":3,"c":2,"v":9}
  • {"r":2,"c":0,"v":9}