medium Set 71 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [40] → [12, _] → [_, 10, 18] → [1, 1, _, _]

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Answer: Row3[1]=2, Row4[3]=9, Row4[4]=9, Row2[2]=28

SubType
number-pyramid
Difficulty
medium
Levels
  • [40]
  • [12,28]
  • [2,10,18]
  • [1,1,9,9]
Base
  • 1
  • 1
  • 9
  • 9
TopValue
40
HiddenCells
  • {"r":2,"c":0,"v":2}
  • {"r":3,"c":2,"v":9}
  • {"r":3,"c":3,"v":9}
  • {"r":1,"c":1,"v":28}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 15] → [5, _, 7] → [1, _, 4, _]

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Answer: Row3[2]=8, Row4[4]=3, Row4[2]=4, Row1[1]=28

SubType
number-pyramid
Difficulty
medium
Levels
  • [28]
  • [13,15]
  • [5,8,7]
  • [1,4,4,3]
Base
  • 1
  • 4
  • 4
  • 3
TopValue
28
HiddenCells
  • {"r":2,"c":1,"v":8}
  • {"r":3,"c":3,"v":3}
  • {"r":3,"c":1,"v":4}
  • {"r":0,"c":0,"v":28}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [33, 20] → [_, 14, _] → [_, 9, 5, 1]

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Answer: Row1[1]=53, Row3[3]=6, Row3[1]=19, Row4[1]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [53]
  • [33,20]
  • [19,14,6]
  • [10,9,5,1]
Base
  • 10
  • 9
  • 5
  • 1
TopValue
53
HiddenCells
  • {"r":0,"c":0,"v":53}
  • {"r":2,"c":2,"v":6}
  • {"r":2,"c":0,"v":19}
  • {"r":3,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [36] → [_, _] → [_, 7, 13] → [7, 2, 5, _]

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Answer: Row2[1]=16, Row2[2]=20, Row4[4]=8, Row3[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [36]
  • [16,20]
  • [9,7,13]
  • [7,2,5,8]
Base
  • 7
  • 2
  • 5
  • 8
TopValue
36
HiddenCells
  • {"r":1,"c":0,"v":16}
  • {"r":1,"c":1,"v":20}
  • {"r":3,"c":3,"v":8}
  • {"r":2,"c":0,"v":9}