medium Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [57] → [32, 25] → [19, _, 12] → [9, _, _, _]

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Answer: Row4[3]=3, Row4[2]=10, Row4[4]=9, Row3[2]=13

SubType
number-pyramid
Difficulty
medium
Levels
  • [57]
  • [32,25]
  • [19,13,12]
  • [9,10,3,9]
Base
  • 9
  • 10
  • 3
  • 9
TopValue
57
HiddenCells
  • {"r":3,"c":2,"v":3}
  • {"r":3,"c":1,"v":10}
  • {"r":3,"c":3,"v":9}
  • {"r":2,"c":1,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [39] → [18, _] → [_, _, 13] → [7, _, 5, 8]

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Answer: Row3[2]=8, Row4[2]=3, Row3[1]=10, Row2[2]=21

SubType
number-pyramid
Difficulty
medium
Levels
  • [39]
  • [18,21]
  • [10,8,13]
  • [7,3,5,8]
Base
  • 7
  • 3
  • 5
  • 8
TopValue
39
HiddenCells
  • {"r":2,"c":1,"v":8}
  • {"r":3,"c":1,"v":3}
  • {"r":2,"c":0,"v":10}
  • {"r":1,"c":1,"v":21}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [53] → [28, _] → [15, 13, _] → [10, 5, _, _]

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Answer: Row4[3]=8, Row3[3]=12, Row4[4]=4, Row2[2]=25

SubType
number-pyramid
Difficulty
medium
Levels
  • [53]
  • [28,25]
  • [15,13,12]
  • [10,5,8,4]
Base
  • 10
  • 5
  • 8
  • 4
TopValue
53
HiddenCells
  • {"r":3,"c":2,"v":8}
  • {"r":2,"c":2,"v":12}
  • {"r":3,"c":3,"v":4}
  • {"r":1,"c":1,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 2, 8] → [9, 1, 1, 7]

Show answer

Answer: Row3[1]=10, Row1[1]=22, Row2[1]=12, Row2[2]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [22]
  • [12,10]
  • [10,2,8]
  • [9,1,1,7]
Base
  • 9
  • 1
  • 1
  • 7
TopValue
22
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":0,"c":0,"v":22}
  • {"r":1,"c":0,"v":12}
  • {"r":1,"c":1,"v":10}