hard 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): [101] → [50, _] → [_, 26, 25] → [_, 11, 15, 10] → [_, _, _, _, _]

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Answer: Row3[1]=24, Row4[1]=13, Row5[2]=5, Row2[2]=51, Row5[4]=9, Row5[5]=1, Row5[1]=8, Row5[3]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [101]
  • [50,51]
  • [24,26,25]
  • [13,11,15,10]
  • [8,5,6,9,1]
Base
  • 8
  • 5
  • 6
  • 9
  • 1
TopValue
101
HiddenCells
  • {"r":2,"c":0,"v":24}
  • {"r":3,"c":0,"v":13}
  • {"r":4,"c":1,"v":5}
  • {"r":1,"c":1,"v":51}
  • {"r":4,"c":3,"v":9}
  • {"r":4,"c":4,"v":1}
  • {"r":4,"c":0,"v":8}
  • {"r":4,"c":2,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [22, 41] → [_, 13, _] → [6, _, _, 18] → [_, 1, 2, _, _]

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Answer: Row5[5]=10, Row4[2]=3, Row1[1]=63, Row5[1]=5, Row3[1]=9, Row4[3]=10, Row5[4]=8, Row3[3]=28

SubType
number-pyramid
Difficulty
hard
Levels
  • [63]
  • [22,41]
  • [9,13,28]
  • [6,3,10,18]
  • [5,1,2,8,10]
Base
  • 5
  • 1
  • 2
  • 8
  • 10
TopValue
63
HiddenCells
  • {"r":4,"c":4,"v":10}
  • {"r":3,"c":1,"v":3}
  • {"r":0,"c":0,"v":63}
  • {"r":4,"c":0,"v":5}
  • {"r":2,"c":0,"v":9}
  • {"r":3,"c":2,"v":10}
  • {"r":4,"c":3,"v":8}
  • {"r":2,"c":2,"v":28}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [35, _] → [_, 19, 22] → [6, 10, _, _] → [1, 5, _, _, _]

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Answer: Row4[4]=13, Row5[4]=4, Row3[1]=16, Row1[1]=76, Row2[2]=41, Row5[3]=5, Row4[3]=9, Row5[5]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [76]
  • [35,41]
  • [16,19,22]
  • [6,10,9,13]
  • [1,5,5,4,9]
Base
  • 1
  • 5
  • 5
  • 4
  • 9
TopValue
76
HiddenCells
  • {"r":3,"c":3,"v":13}
  • {"r":4,"c":3,"v":4}
  • {"r":2,"c":0,"v":16}
  • {"r":0,"c":0,"v":76}
  • {"r":1,"c":1,"v":41}
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":2,"v":9}
  • {"r":4,"c":4,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [66] → [_, _] → [14, _, 22] → [8, 6, 9, 13] → [_, _, _, _, _]

Show answer

Answer: Row5[4]=5, Row5[2]=2, Row5[3]=4, Row3[2]=15, Row5[1]=6, Row2[2]=37, Row5[5]=8, Row2[1]=29

SubType
number-pyramid
Difficulty
hard
Levels
  • [66]
  • [29,37]
  • [14,15,22]
  • [8,6,9,13]
  • [6,2,4,5,8]
Base
  • 6
  • 2
  • 4
  • 5
  • 8
TopValue
66
HiddenCells
  • {"r":4,"c":3,"v":5}
  • {"r":4,"c":1,"v":2}
  • {"r":4,"c":2,"v":4}
  • {"r":2,"c":1,"v":15}
  • {"r":4,"c":0,"v":6}
  • {"r":1,"c":1,"v":37}
  • {"r":4,"c":4,"v":8}
  • {"r":1,"c":0,"v":29}