medium Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [22, 25] → [7, _, _] → [1, 6, _, 1]

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Answer: Row3[2]=15, Row1[1]=47, Row3[3]=10, Row4[3]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [47]
  • [22,25]
  • [7,15,10]
  • [1,6,9,1]
Base
  • 1
  • 6
  • 9
  • 1
TopValue
47
HiddenCells
  • {"r":2,"c":1,"v":15}
  • {"r":0,"c":0,"v":47}
  • {"r":2,"c":2,"v":10}
  • {"r":3,"c":2,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [66] → [29, 37] → [11, 18, _] → [_, 9, _, _]

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Answer: Row4[1]=2, Row3[3]=19, Row4[3]=9, Row4[4]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [66]
  • [29,37]
  • [11,18,19]
  • [2,9,9,10]
Base
  • 2
  • 9
  • 9
  • 10
TopValue
66
HiddenCells
  • {"r":3,"c":0,"v":2}
  • {"r":2,"c":2,"v":19}
  • {"r":3,"c":2,"v":9}
  • {"r":3,"c":3,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [24, 24] → [13, _, 13] → [7, _, _, 8]

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Answer: Row1[1]=48, Row4[3]=5, Row4[2]=6, Row3[2]=11

SubType
number-pyramid
Difficulty
medium
Levels
  • [48]
  • [24,24]
  • [13,11,13]
  • [7,6,5,8]
Base
  • 7
  • 6
  • 5
  • 8
TopValue
48
HiddenCells
  • {"r":0,"c":0,"v":48}
  • {"r":3,"c":2,"v":5}
  • {"r":3,"c":1,"v":6}
  • {"r":2,"c":1,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 10] → [_, 6, 4] → [_, _, 1, 3]

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Answer: Row1[1]=23, Row4[1]=2, Row3[1]=7, Row4[2]=5

SubType
number-pyramid
Difficulty
medium
Levels
  • [23]
  • [13,10]
  • [7,6,4]
  • [2,5,1,3]
Base
  • 2
  • 5
  • 1
  • 3
TopValue
23
HiddenCells
  • {"r":0,"c":0,"v":23}
  • {"r":3,"c":0,"v":2}
  • {"r":2,"c":0,"v":7}
  • {"r":3,"c":1,"v":5}