hard Set 18 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [53, 54] → [_, _, 29] → [_, 11, _, 15] → [_, _, _, 10, 5]

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Answer: Row1[1]=107, Row3[1]=28, Row4[1]=17, Row4[3]=14, Row5[3]=4, Row5[2]=7, Row3[2]=25, Row5[1]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [107]
  • [53,54]
  • [28,25,29]
  • [17,11,14,15]
  • [10,7,4,10,5]
Base
  • 10
  • 7
  • 4
  • 10
  • 5
TopValue
107
HiddenCells
  • {"r":0,"c":0,"v":107}
  • {"r":2,"c":0,"v":28}
  • {"r":3,"c":0,"v":17}
  • {"r":3,"c":2,"v":14}
  • {"r":4,"c":2,"v":4}
  • {"r":4,"c":1,"v":7}
  • {"r":2,"c":1,"v":25}
  • {"r":4,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [75] → [39, 36] → [21, 18, _] → [_, _, _, _] → [_, 9, _, _, 3]

Show answer

Answer: Row5[1]=2, Row4[2]=10, Row4[3]=8, Row3[3]=18, Row4[1]=11, Row5[3]=1, Row5[4]=7, Row4[4]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [75]
  • [39,36]
  • [21,18,18]
  • [11,10,8,10]
  • [2,9,1,7,3]
Base
  • 2
  • 9
  • 1
  • 7
  • 3
TopValue
75
HiddenCells
  • {"r":4,"c":0,"v":2}
  • {"r":3,"c":1,"v":10}
  • {"r":3,"c":2,"v":8}
  • {"r":2,"c":2,"v":18}
  • {"r":3,"c":0,"v":11}
  • {"r":4,"c":2,"v":1}
  • {"r":4,"c":3,"v":7}
  • {"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): [_] → [50, _] → [25, _, _] → [13, _, 13, _] → [_, 3, 9, 4, _]

Show answer

Answer: Row4[2]=12, Row3[3]=22, Row5[5]=5, Row5[1]=10, Row2[2]=47, Row1[1]=97, Row4[4]=9, Row3[2]=25

SubType
number-pyramid
Difficulty
hard
Levels
  • [97]
  • [50,47]
  • [25,25,22]
  • [13,12,13,9]
  • [10,3,9,4,5]
Base
  • 10
  • 3
  • 9
  • 4
  • 5
TopValue
97
HiddenCells
  • {"r":3,"c":1,"v":12}
  • {"r":2,"c":2,"v":22}
  • {"r":4,"c":4,"v":5}
  • {"r":4,"c":0,"v":10}
  • {"r":1,"c":1,"v":47}
  • {"r":0,"c":0,"v":97}
  • {"r":3,"c":3,"v":9}
  • {"r":2,"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): [_] → [_, _] → [_, 23, 21] → [_, 11, _, 9] → [5, 5, _, _, 3]

Show answer

Answer: Row5[3]=6, Row4[1]=10, Row3[1]=21, Row5[4]=6, Row4[3]=12, Row2[1]=44, Row1[1]=88, Row2[2]=44

SubType
number-pyramid
Difficulty
hard
Levels
  • [88]
  • [44,44]
  • [21,23,21]
  • [10,11,12,9]
  • [5,5,6,6,3]
Base
  • 5
  • 5
  • 6
  • 6
  • 3
TopValue
88
HiddenCells
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":0,"v":10}
  • {"r":2,"c":0,"v":21}
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":2,"v":12}
  • {"r":1,"c":0,"v":44}
  • {"r":0,"c":0,"v":88}
  • {"r":1,"c":1,"v":44}