hard Set 99 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 14] → [7, _, 8] → [4, _, 3, _] → [_, _, _, 2, 3]

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Answer: Row3[2]=6, Row5[2]=2, Row1[1]=27, Row4[2]=3, Row5[3]=1, Row2[1]=13, Row5[1]=2, Row4[4]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [27]
  • [13,14]
  • [7,6,8]
  • [4,3,3,5]
  • [2,2,1,2,3]
Base
  • 2
  • 2
  • 1
  • 2
  • 3
TopValue
27
HiddenCells
  • {"r":2,"c":1,"v":6}
  • {"r":4,"c":1,"v":2}
  • {"r":0,"c":0,"v":27}
  • {"r":3,"c":1,"v":3}
  • {"r":4,"c":2,"v":1}
  • {"r":1,"c":0,"v":13}
  • {"r":4,"c":0,"v":2}
  • {"r":3,"c":3,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [91] → [_, 39] → [28, _, _] → [12, _, _, _] → [_, 10, 6, 2, _]

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Answer: Row2[1]=52, Row4[4]=7, Row4[3]=8, Row4[2]=16, Row5[1]=2, Row3[3]=15, Row3[2]=24, Row5[5]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [91]
  • [52,39]
  • [28,24,15]
  • [12,16,8,7]
  • [2,10,6,2,5]
Base
  • 2
  • 10
  • 6
  • 2
  • 5
TopValue
91
HiddenCells
  • {"r":1,"c":0,"v":52}
  • {"r":3,"c":3,"v":7}
  • {"r":3,"c":2,"v":8}
  • {"r":3,"c":1,"v":16}
  • {"r":4,"c":0,"v":2}
  • {"r":2,"c":2,"v":15}
  • {"r":2,"c":1,"v":24}
  • {"r":4,"c":4,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [47] → [_, _] → [_, _, 7] → [13, _, _, 4] → [8, _, _, 1, 3]

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Answer: Row4[2]=7, Row3[1]=20, Row5[2]=5, Row2[2]=17, Row2[1]=30, Row5[3]=2, Row4[3]=3, Row3[2]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [47]
  • [30,17]
  • [20,10,7]
  • [13,7,3,4]
  • [8,5,2,1,3]
Base
  • 8
  • 5
  • 2
  • 1
  • 3
TopValue
47
HiddenCells
  • {"r":3,"c":1,"v":7}
  • {"r":2,"c":0,"v":20}
  • {"r":4,"c":1,"v":5}
  • {"r":1,"c":1,"v":17}
  • {"r":1,"c":0,"v":30}
  • {"r":4,"c":2,"v":2}
  • {"r":3,"c":2,"v":3}
  • {"r":2,"c":1,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [100] → [_, _] → [28, 23, _] → [15, 13, 10, _] → [_, _, _, 6, _]

Show answer

Answer: Row3[3]=26, Row5[5]=10, Row5[1]=6, Row2[2]=49, Row2[1]=51, Row5[3]=4, Row5[2]=9, Row4[4]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [100]
  • [51,49]
  • [28,23,26]
  • [15,13,10,16]
  • [6,9,4,6,10]
Base
  • 6
  • 9
  • 4
  • 6
  • 10
TopValue
100
HiddenCells
  • {"r":2,"c":2,"v":26}
  • {"r":4,"c":4,"v":10}
  • {"r":4,"c":0,"v":6}
  • {"r":1,"c":1,"v":49}
  • {"r":1,"c":0,"v":51}
  • {"r":4,"c":2,"v":4}
  • {"r":4,"c":1,"v":9}
  • {"r":3,"c":3,"v":16}