medium Set 29 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [49] → [_, _] → [11, 10, 18] → [_, 1, 9, _]

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Answer: Row4[1]=10, Row2[2]=28, Row2[1]=21, Row4[4]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [21,28]
  • [11,10,18]
  • [10,1,9,9]
Base
  • 10
  • 1
  • 9
  • 9
TopValue
49
HiddenCells
  • {"r":3,"c":0,"v":10}
  • {"r":1,"c":1,"v":28}
  • {"r":1,"c":0,"v":21}
  • {"r":3,"c":3,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [9, _] → [_, 5, 4] → [2, 2, 3, _]

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Answer: Row2[2]=9, Row4[4]=1, Row1[1]=18, Row3[1]=4

SubType
number-pyramid
Difficulty
medium
Levels
  • [18]
  • [9,9]
  • [4,5,4]
  • [2,2,3,1]
Base
  • 2
  • 2
  • 3
  • 1
TopValue
18
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"r":3,"c":3,"v":1}
  • {"r":0,"c":0,"v":18}
  • {"r":2,"c":0,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [10, _] → [_, _, 13] → [5, _, 3, 10]

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Answer: Row3[2]=4, Row2[2]=17, Row4[2]=1, Row3[1]=6

SubType
number-pyramid
Difficulty
medium
Levels
  • [27]
  • [10,17]
  • [6,4,13]
  • [5,1,3,10]
Base
  • 5
  • 1
  • 3
  • 10
TopValue
27
HiddenCells
  • {"r":2,"c":1,"v":4}
  • {"r":1,"c":1,"v":17}
  • {"r":3,"c":1,"v":1}
  • {"r":2,"c":0,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 12] → [10, 5, 7] → [9, _, 4, _]

Show answer

Answer: Row4[4]=3, Row4[2]=1, Row2[1]=15, Row1[1]=27

SubType
number-pyramid
Difficulty
medium
Levels
  • [27]
  • [15,12]
  • [10,5,7]
  • [9,1,4,3]
Base
  • 9
  • 1
  • 4
  • 3
TopValue
27
HiddenCells
  • {"r":3,"c":3,"v":3}
  • {"r":3,"c":1,"v":1}
  • {"r":1,"c":0,"v":15}
  • {"r":0,"c":0,"v":27}