medium Set 87 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [25, 21] → [16, 9, _] → [_, 6, _, 9]

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Answer: Row4[3]=3, Row3[3]=12, Row4[1]=10, Row1[1]=46

SubType
number-pyramid
Difficulty
medium
Levels
  • [46]
  • [25,21]
  • [16,9,12]
  • [10,6,3,9]
Base
  • 10
  • 6
  • 3
  • 9
TopValue
46
HiddenCells
  • {"r":3,"c":2,"v":3}
  • {"r":2,"c":2,"v":12}
  • {"r":3,"c":0,"v":10}
  • {"r":0,"c":0,"v":46}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [37, _] → [_, 17, _] → [10, 10, 7, 10]

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Answer: Row1[1]=71, Row2[2]=34, Row3[1]=20, Row3[3]=17

SubType
number-pyramid
Difficulty
medium
Levels
  • [71]
  • [37,34]
  • [20,17,17]
  • [10,10,7,10]
Base
  • 10
  • 10
  • 7
  • 10
TopValue
71
HiddenCells
  • {"r":0,"c":0,"v":71}
  • {"r":1,"c":1,"v":34}
  • {"r":2,"c":0,"v":20}
  • {"r":2,"c":2,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [35] → [21, 14] → [_, _, _] → [10, 5, _, 7]

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Answer: Row3[1]=15, Row3[2]=6, Row3[3]=8, Row4[3]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [35]
  • [21,14]
  • [15,6,8]
  • [10,5,1,7]
Base
  • 10
  • 5
  • 1
  • 7
TopValue
35
HiddenCells
  • {"r":2,"c":0,"v":15}
  • {"r":2,"c":1,"v":6}
  • {"r":2,"c":2,"v":8}
  • {"r":3,"c":2,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [34] → [19, 15] → [_, 9, 6] → [_, _, 1, _]

Show answer

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

SubType
number-pyramid
Difficulty
medium
Levels
  • [34]
  • [19,15]
  • [10,9,6]
  • [2,8,1,5]
Base
  • 2
  • 8
  • 1
  • 5
TopValue
34
HiddenCells
  • {"r":3,"c":1,"v":8}
  • {"r":3,"c":3,"v":5}
  • {"r":3,"c":0,"v":2}
  • {"r":2,"c":0,"v":10}