hard 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): [88] → [_, 45] → [_, 22, _] → [_, _, _, 10] → [_, 4, 5, _, 2]

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Answer: Row3[1]=21, Row4[2]=9, Row2[1]=43, Row5[4]=8, Row4[3]=13, Row3[3]=23, Row5[1]=8, Row4[1]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [88]
  • [43,45]
  • [21,22,23]
  • [12,9,13,10]
  • [8,4,5,8,2]
Base
  • 8
  • 4
  • 5
  • 8
  • 2
TopValue
88
HiddenCells
  • {"r":2,"c":0,"v":21}
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":0,"v":43}
  • {"r":4,"c":3,"v":8}
  • {"r":3,"c":2,"v":13}
  • {"r":2,"c":2,"v":23}
  • {"r":4,"c":0,"v":8}
  • {"r":3,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [111] → [_, 61] → [_, _, _] → [_, 10, 19, _] → [10, 1, _, _, 3]

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Answer: Row3[1]=21, Row5[3]=9, Row3[2]=29, Row5[4]=10, Row2[1]=50, Row3[3]=32, Row4[1]=11, Row4[4]=13

SubType
number-pyramid
Difficulty
hard
Levels
  • [111]
  • [50,61]
  • [21,29,32]
  • [11,10,19,13]
  • [10,1,9,10,3]
Base
  • 10
  • 1
  • 9
  • 10
  • 3
TopValue
111
HiddenCells
  • {"r":2,"c":0,"v":21}
  • {"r":4,"c":2,"v":9}
  • {"r":2,"c":1,"v":29}
  • {"r":4,"c":3,"v":10}
  • {"r":1,"c":0,"v":50}
  • {"r":2,"c":2,"v":32}
  • {"r":3,"c":0,"v":11}
  • {"r":3,"c":3,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [15, 19, _] → [_, 10, _, 6] → [2, _, _, 2, 4]

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Answer: Row4[3]=9, Row3[3]=15, Row2[2]=34, Row5[3]=7, Row5[2]=3, Row1[1]=68, Row4[1]=5, Row2[1]=34

SubType
number-pyramid
Difficulty
hard
Levels
  • [68]
  • [34,34]
  • [15,19,15]
  • [5,10,9,6]
  • [2,3,7,2,4]
Base
  • 2
  • 3
  • 7
  • 2
  • 4
TopValue
68
HiddenCells
  • {"r":3,"c":2,"v":9}
  • {"r":2,"c":2,"v":15}
  • {"r":1,"c":1,"v":34}
  • {"r":4,"c":2,"v":7}
  • {"r":4,"c":1,"v":3}
  • {"r":0,"c":0,"v":68}
  • {"r":3,"c":0,"v":5}
  • {"r":1,"c":0,"v":34}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [73] → [31, 42] → [_, _, _] → [_, 5, 11, _] → [7, _, _, _, 6]

Show answer

Answer: Row5[3]=2, Row3[1]=15, Row4[4]=15, Row3[2]=16, Row5[4]=9, Row4[1]=10, Row5[2]=3, Row3[3]=26

SubType
number-pyramid
Difficulty
hard
Levels
  • [73]
  • [31,42]
  • [15,16,26]
  • [10,5,11,15]
  • [7,3,2,9,6]
Base
  • 7
  • 3
  • 2
  • 9
  • 6
TopValue
73
HiddenCells
  • {"r":4,"c":2,"v":2}
  • {"r":2,"c":0,"v":15}
  • {"r":3,"c":3,"v":15}
  • {"r":2,"c":1,"v":16}
  • {"r":4,"c":3,"v":9}
  • {"r":3,"c":0,"v":10}
  • {"r":4,"c":1,"v":3}
  • {"r":2,"c":2,"v":26}