hard Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [123] → [58, 65] → [27, _, _] → [_, _, 16, 18] → [_, 7, _, _, _]

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Answer: Row5[5]=10, Row3[2]=31, Row5[3]=8, Row4[2]=15, Row3[3]=34, Row4[1]=12, Row5[1]=5, Row5[4]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [123]
  • [58,65]
  • [27,31,34]
  • [12,15,16,18]
  • [5,7,8,8,10]
Base
  • 5
  • 7
  • 8
  • 8
  • 10
TopValue
123
HiddenCells
  • {"r":4,"c":4,"v":10}
  • {"r":2,"c":1,"v":31}
  • {"r":4,"c":2,"v":8}
  • {"r":3,"c":1,"v":15}
  • {"r":2,"c":2,"v":34}
  • {"r":3,"c":0,"v":12}
  • {"r":4,"c":0,"v":5}
  • {"r":4,"c":3,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [59] → [_, 24] → [_, 12, _] → [14, 9, _, 9] → [_, _, _, 1, _]

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Answer: Row3[1]=23, Row5[3]=2, Row5[5]=8, Row5[1]=7, Row3[3]=12, Row5[2]=7, Row2[1]=35, Row4[3]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [59]
  • [35,24]
  • [23,12,12]
  • [14,9,3,9]
  • [7,7,2,1,8]
Base
  • 7
  • 7
  • 2
  • 1
  • 8
TopValue
59
HiddenCells
  • {"r":2,"c":0,"v":23}
  • {"r":4,"c":2,"v":2}
  • {"r":4,"c":4,"v":8}
  • {"r":4,"c":0,"v":7}
  • {"r":2,"c":2,"v":12}
  • {"r":4,"c":1,"v":7}
  • {"r":1,"c":0,"v":35}
  • {"r":3,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [59, 42] → [35, _, 18] → [_, _, 8, _] → [_, 10, 6, _, _]

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Answer: Row5[1]=9, Row4[4]=10, Row4[1]=19, Row3[2]=24, Row1[1]=101, Row5[4]=2, Row4[2]=16, Row5[5]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [101]
  • [59,42]
  • [35,24,18]
  • [19,16,8,10]
  • [9,10,6,2,8]
Base
  • 9
  • 10
  • 6
  • 2
  • 8
TopValue
101
HiddenCells
  • {"r":4,"c":0,"v":9}
  • {"r":3,"c":3,"v":10}
  • {"r":3,"c":0,"v":19}
  • {"r":2,"c":1,"v":24}
  • {"r":0,"c":0,"v":101}
  • {"r":4,"c":3,"v":2}
  • {"r":3,"c":1,"v":16}
  • {"r":4,"c":4,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [63] → [31, 32] → [16, _, _] → [_, 8, _, _] → [_, _, 2, 5, _]

Show answer

Answer: Row4[4]=10, Row4[3]=7, Row5[5]=5, Row4[1]=8, Row3[3]=17, Row5[1]=2, Row5[2]=6, Row3[2]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [63]
  • [31,32]
  • [16,15,17]
  • [8,8,7,10]
  • [2,6,2,5,5]
Base
  • 2
  • 6
  • 2
  • 5
  • 5
TopValue
63
HiddenCells
  • {"r":3,"c":3,"v":10}
  • {"r":3,"c":2,"v":7}
  • {"r":4,"c":4,"v":5}
  • {"r":3,"c":0,"v":8}
  • {"r":2,"c":2,"v":17}
  • {"r":4,"c":0,"v":2}
  • {"r":4,"c":1,"v":6}
  • {"r":2,"c":1,"v":15}