medium Set 20 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [44] → [_, _] → [_, 13, 8] → [_, 9, 4, 4]

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Answer: Row2[2]=21, Row2[1]=23, Row3[1]=10, Row4[1]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [44]
  • [23,21]
  • [10,13,8]
  • [1,9,4,4]
Base
  • 1
  • 9
  • 4
  • 4
TopValue
44
HiddenCells
  • {"r":1,"c":1,"v":21}
  • {"r":1,"c":0,"v":23}
  • {"r":2,"c":0,"v":10}
  • {"r":3,"c":0,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [72] → [_, _] → [20, 19, 14] → [_, _, 9, 5]

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Answer: Row2[1]=39, Row4[1]=10, Row2[2]=33, Row4[2]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [72]
  • [39,33]
  • [20,19,14]
  • [10,10,9,5]
Base
  • 10
  • 10
  • 9
  • 5
TopValue
72
HiddenCells
  • {"r":1,"c":0,"v":39}
  • {"r":3,"c":0,"v":10}
  • {"r":1,"c":1,"v":33}
  • {"r":3,"c":1,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 15] → [5, 8, _] → [_, _, 4, 3]

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Answer: Row1[1]=28, Row3[3]=7, Row4[2]=4, Row4[1]=1

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":0,"c":0,"v":28}
  • {"r":2,"c":2,"v":7}
  • {"r":3,"c":1,"v":4}
  • {"r":3,"c":0,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [26] → [_, 13] → [8, 5, 8] → [_, _, 2, _]

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Answer: Row4[4]=6, Row4[1]=5, Row4[2]=3, Row2[1]=13

SubType
number-pyramid
Difficulty
medium
Levels
  • [26]
  • [13,13]
  • [8,5,8]
  • [5,3,2,6]
Base
  • 5
  • 3
  • 2
  • 6
TopValue
26
HiddenCells
  • {"r":3,"c":3,"v":6}
  • {"r":3,"c":0,"v":5}
  • {"r":3,"c":1,"v":3}
  • {"r":1,"c":0,"v":13}