medium Set 55 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [35] → [_, _] → [_, _, 13] → [1, 1, 9, 4]

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Answer: Row2[1]=12, Row3[2]=10, Row3[1]=2, Row2[2]=23

SubType
number-pyramid
Difficulty
medium
Levels
  • [35]
  • [12,23]
  • [2,10,13]
  • [1,1,9,4]
Base
  • 1
  • 1
  • 9
  • 4
TopValue
35
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"r":2,"c":1,"v":10}
  • {"r":2,"c":0,"v":2}
  • {"r":1,"c":1,"v":23}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [68] → [_, _] → [15, 18, 17] → [6, _, 9, _]

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Answer: Row2[2]=35, Row4[4]=8, Row4[2]=9, Row2[1]=33

SubType
number-pyramid
Difficulty
medium
Levels
  • [68]
  • [33,35]
  • [15,18,17]
  • [6,9,9,8]
Base
  • 6
  • 9
  • 9
  • 8
TopValue
68
HiddenCells
  • {"r":1,"c":1,"v":35}
  • {"r":3,"c":3,"v":8}
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":0,"v":33}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [18, _] → [_, 9, 11] → [_, 5, 4, 7]

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Answer: Row4[1]=4, Row3[1]=9, Row2[2]=20, Row1[1]=38

SubType
number-pyramid
Difficulty
medium
Levels
  • [38]
  • [18,20]
  • [9,9,11]
  • [4,5,4,7]
Base
  • 4
  • 5
  • 4
  • 7
TopValue
38
HiddenCells
  • {"r":3,"c":0,"v":4}
  • {"r":2,"c":0,"v":9}
  • {"r":1,"c":1,"v":20}
  • {"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): [26] → [_, 11] → [9, _, 5] → [5, _, 2, _]

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Answer: Row4[4]=3, Row4[2]=4, Row2[1]=15, Row3[2]=6

SubType
number-pyramid
Difficulty
medium
Levels
  • [26]
  • [15,11]
  • [9,6,5]
  • [5,4,2,3]
Base
  • 5
  • 4
  • 2
  • 3
TopValue
26
HiddenCells
  • {"r":3,"c":3,"v":3}
  • {"r":3,"c":1,"v":4}
  • {"r":1,"c":0,"v":15}
  • {"r":2,"c":1,"v":6}