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): [33] → [18, 15] → [_, 5, _] → [9, _, _, 9]

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Answer: Row3[1]=13, Row4[3]=1, Row4[2]=4, Row3[3]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [33]
  • [18,15]
  • [13,5,10]
  • [9,4,1,9]
Base
  • 9
  • 4
  • 1
  • 9
TopValue
33
HiddenCells
  • {"r":2,"c":0,"v":13}
  • {"r":3,"c":2,"v":1}
  • {"r":3,"c":1,"v":4}
  • {"r":2,"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): [56] → [29, _] → [_, 15, 12] → [_, _, 7, 5]

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Answer: Row4[2]=8, Row4[1]=6, Row3[1]=14, Row2[2]=27

SubType
number-pyramid
Difficulty
medium
Levels
  • [56]
  • [29,27]
  • [14,15,12]
  • [6,8,7,5]
Base
  • 6
  • 8
  • 7
  • 5
TopValue
56
HiddenCells
  • {"r":3,"c":1,"v":8}
  • {"r":3,"c":0,"v":6}
  • {"r":2,"c":0,"v":14}
  • {"r":1,"c":1,"v":27}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [18, 23] → [7, 11, 12] → [3, _, _, _]

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Answer: Row4[4]=5, Row1[1]=41, Row4[2]=4, Row4[3]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [41]
  • [18,23]
  • [7,11,12]
  • [3,4,7,5]
Base
  • 3
  • 4
  • 7
  • 5
TopValue
41
HiddenCells
  • {"r":3,"c":3,"v":5}
  • {"r":0,"c":0,"v":41}
  • {"r":3,"c":1,"v":4}
  • {"r":3,"c":2,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [46] → [_, 18] → [_, 12, 6] → [9, 7, _, _]

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Answer: Row4[4]=1, Row4[3]=5, Row3[1]=16, Row2[1]=28

SubType
number-pyramid
Difficulty
medium
Levels
  • [46]
  • [28,18]
  • [16,12,6]
  • [9,7,5,1]
Base
  • 9
  • 7
  • 5
  • 1
TopValue
46
HiddenCells
  • {"r":3,"c":3,"v":1}
  • {"r":3,"c":2,"v":5}
  • {"r":2,"c":0,"v":16}
  • {"r":1,"c":0,"v":28}