medium Set 28 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 38] → [19, 20, 18] → [_, 10, _, 8]

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Answer: Row4[1]=9, Row1[1]=77, Row2[1]=39, Row4[3]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [77]
  • [39,38]
  • [19,20,18]
  • [9,10,10,8]
Base
  • 9
  • 10
  • 10
  • 8
TopValue
77
HiddenCells
  • {"r":3,"c":0,"v":9}
  • {"r":0,"c":0,"v":77}
  • {"r":1,"c":0,"v":39}
  • {"r":3,"c":2,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [32] → [14, _] → [9, _, _] → [7, 2, _, 10]

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Answer: Row2[2]=18, Row3[3]=13, Row3[2]=5, Row4[3]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [32]
  • [14,18]
  • [9,5,13]
  • [7,2,3,10]
Base
  • 7
  • 2
  • 3
  • 10
TopValue
32
HiddenCells
  • {"r":1,"c":1,"v":18}
  • {"r":2,"c":2,"v":13}
  • {"r":2,"c":1,"v":5}
  • {"r":3,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [22, _] → [13, 9, 7] → [8, 5, _, _]

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Answer: Row4[4]=3, Row2[2]=16, Row4[3]=4, Row1[1]=38

SubType
number-pyramid
Difficulty
medium
Levels
  • [38]
  • [22,16]
  • [13,9,7]
  • [8,5,4,3]
Base
  • 8
  • 5
  • 4
  • 3
TopValue
38
HiddenCells
  • {"r":3,"c":3,"v":3}
  • {"r":1,"c":1,"v":16}
  • {"r":3,"c":2,"v":4}
  • {"r":0,"c":0,"v":38}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [55] → [_, 27] → [11, _, 10] → [_, 8, 9, _]

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Answer: Row3[2]=17, Row4[1]=3, Row2[1]=28, Row4[4]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [55]
  • [28,27]
  • [11,17,10]
  • [3,8,9,1]
Base
  • 3
  • 8
  • 9
  • 1
TopValue
55
HiddenCells
  • {"r":2,"c":1,"v":17}
  • {"r":3,"c":0,"v":3}
  • {"r":1,"c":0,"v":28}
  • {"r":3,"c":3,"v":1}