hard Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 13] → [9, 5, _] → [6, 3, 2, _] → [_, _, _, _, 5]

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Answer: Row5[2]=2, Row3[3]=8, Row4[4]=6, Row5[3]=1, Row5[1]=4, Row2[1]=14, Row1[1]=27, Row5[4]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [27]
  • [14,13]
  • [9,5,8]
  • [6,3,2,6]
  • [4,2,1,1,5]
Base
  • 4
  • 2
  • 1
  • 1
  • 5
TopValue
27
HiddenCells
  • {"r":4,"c":1,"v":2}
  • {"r":2,"c":2,"v":8}
  • {"r":3,"c":3,"v":6}
  • {"r":4,"c":2,"v":1}
  • {"r":4,"c":0,"v":4}
  • {"r":1,"c":0,"v":14}
  • {"r":0,"c":0,"v":27}
  • {"r":4,"c":3,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [103] → [_, _] → [_, _, 27] → [_, 14, 11, _] → [_, 10, 4, 7, _]

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Answer: Row5[1]=2, Row2[2]=52, Row4[1]=12, Row5[5]=9, Row3[2]=25, Row4[4]=16, Row3[1]=26, Row2[1]=51

SubType
number-pyramid
Difficulty
hard
Levels
  • [103]
  • [51,52]
  • [26,25,27]
  • [12,14,11,16]
  • [2,10,4,7,9]
Base
  • 2
  • 10
  • 4
  • 7
  • 9
TopValue
103
HiddenCells
  • {"r":4,"c":0,"v":2}
  • {"r":1,"c":1,"v":52}
  • {"r":3,"c":0,"v":12}
  • {"r":4,"c":4,"v":9}
  • {"r":2,"c":1,"v":25}
  • {"r":3,"c":3,"v":16}
  • {"r":2,"c":0,"v":26}
  • {"r":1,"c":0,"v":51}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [99] → [56, 43] → [_, 24, _] → [_, 14, _, _] → [9, _, _, _, 4]

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Answer: Row5[3]=5, Row4[4]=9, Row4[1]=18, Row3[3]=19, Row5[4]=5, Row3[1]=32, Row5[2]=9, Row4[3]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [99]
  • [56,43]
  • [32,24,19]
  • [18,14,10,9]
  • [9,9,5,5,4]
Base
  • 9
  • 9
  • 5
  • 5
  • 4
TopValue
99
HiddenCells
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":3,"v":9}
  • {"r":3,"c":0,"v":18}
  • {"r":2,"c":2,"v":19}
  • {"r":4,"c":3,"v":5}
  • {"r":2,"c":0,"v":32}
  • {"r":4,"c":1,"v":9}
  • {"r":3,"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): [71] → [31, _] → [_, _, 22] → [_, _, 12, 10] → [_, _, _, 7, 3]

Show answer

Answer: Row2[2]=40, Row5[3]=5, Row5[1]=6, Row3[2]=18, Row3[1]=13, Row4[1]=7, Row4[2]=6, Row5[2]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [71]
  • [31,40]
  • [13,18,22]
  • [7,6,12,10]
  • [6,1,5,7,3]
Base
  • 6
  • 1
  • 5
  • 7
  • 3
TopValue
71
HiddenCells
  • {"r":1,"c":1,"v":40}
  • {"r":4,"c":2,"v":5}
  • {"r":4,"c":0,"v":6}
  • {"r":2,"c":1,"v":18}
  • {"r":2,"c":0,"v":13}
  • {"r":3,"c":0,"v":7}
  • {"r":3,"c":1,"v":6}
  • {"r":4,"c":1,"v":1}