medium Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [16] → [10, _] → [_, 4, _] → [_, 3, 1, 1]

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Answer: Row2[2]=6, Row3[1]=6, Row4[1]=3, Row3[3]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [16]
  • [10,6]
  • [6,4,2]
  • [3,3,1,1]
Base
  • 3
  • 3
  • 1
  • 1
TopValue
16
HiddenCells
  • {"r":1,"c":1,"v":6}
  • {"r":2,"c":0,"v":6}
  • {"r":3,"c":0,"v":3}
  • {"r":2,"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): [_] → [33, 31] → [14, 19, 12] → [5, _, _, _]

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Answer: Row4[2]=9, Row4[3]=10, Row4[4]=2, Row1[1]=64

SubType
number-pyramid
Difficulty
medium
Levels
  • [64]
  • [33,31]
  • [14,19,12]
  • [5,9,10,2]
Base
  • 5
  • 9
  • 10
  • 2
TopValue
64
HiddenCells
  • {"r":3,"c":1,"v":9}
  • {"r":3,"c":2,"v":10}
  • {"r":3,"c":3,"v":2}
  • {"r":0,"c":0,"v":64}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [53] → [_, 25] → [_, 13, 12] → [_, 6, _, 5]

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Answer: Row4[1]=9, Row3[1]=15, Row2[1]=28, Row4[3]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [53]
  • [28,25]
  • [15,13,12]
  • [9,6,7,5]
Base
  • 9
  • 6
  • 7
  • 5
TopValue
53
HiddenCells
  • {"r":3,"c":0,"v":9}
  • {"r":2,"c":0,"v":15}
  • {"r":1,"c":0,"v":28}
  • {"r":3,"c":2,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [18, _] → [_, 8, 15] → [7, 3, 5, _]

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Answer: Row3[1]=10, Row1[1]=41, Row2[2]=23, Row4[4]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [41]
  • [18,23]
  • [10,8,15]
  • [7,3,5,10]
Base
  • 7
  • 3
  • 5
  • 10
TopValue
41
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":0,"c":0,"v":41}
  • {"r":1,"c":1,"v":23}
  • {"r":3,"c":3,"v":10}