hard Set 51 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [47, 58] → [_, _, _] → [9, _, _, _] → [8, 1, 10, _, 9]

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Answer: Row3[1]=20, Row3[2]=27, Row1[1]=105, Row4[2]=11, Row4[3]=16, Row5[4]=6, Row4[4]=15, Row3[3]=31

SubType
number-pyramid
Difficulty
hard
Levels
  • [105]
  • [47,58]
  • [20,27,31]
  • [9,11,16,15]
  • [8,1,10,6,9]
Base
  • 8
  • 1
  • 10
  • 6
  • 9
TopValue
105
HiddenCells
  • {"r":2,"c":0,"v":20}
  • {"r":2,"c":1,"v":27}
  • {"r":0,"c":0,"v":105}
  • {"r":3,"c":1,"v":11}
  • {"r":3,"c":2,"v":16}
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":3,"v":15}
  • {"r":2,"c":2,"v":31}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [91] → [_, 43] → [_, _, _] → [_, 13, 11, 8] → [_, 8, _, _, 2]

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Answer: Row3[3]=19, Row3[2]=24, Row5[4]=6, Row5[1]=3, Row2[1]=48, Row4[1]=11, Row5[3]=5, Row3[1]=24

SubType
number-pyramid
Difficulty
hard
Levels
  • [91]
  • [48,43]
  • [24,24,19]
  • [11,13,11,8]
  • [3,8,5,6,2]
Base
  • 3
  • 8
  • 5
  • 6
  • 2
TopValue
91
HiddenCells
  • {"r":2,"c":2,"v":19}
  • {"r":2,"c":1,"v":24}
  • {"r":4,"c":3,"v":6}
  • {"r":4,"c":0,"v":3}
  • {"r":1,"c":0,"v":48}
  • {"r":3,"c":0,"v":11}
  • {"r":4,"c":2,"v":5}
  • {"r":2,"c":0,"v":24}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [70] → [_, 34] → [_, _, 16] → [8, 10, _, _] → [3, _, 5, _, _]

Show answer

Answer: Row4[4]=8, Row2[1]=36, Row5[5]=5, Row5[4]=3, Row4[3]=8, Row5[2]=5, Row3[2]=18, Row3[1]=18

SubType
number-pyramid
Difficulty
hard
Levels
  • [70]
  • [36,34]
  • [18,18,16]
  • [8,10,8,8]
  • [3,5,5,3,5]
Base
  • 3
  • 5
  • 5
  • 3
  • 5
TopValue
70
HiddenCells
  • {"r":3,"c":3,"v":8}
  • {"r":1,"c":0,"v":36}
  • {"r":4,"c":4,"v":5}
  • {"r":4,"c":3,"v":3}
  • {"r":3,"c":2,"v":8}
  • {"r":4,"c":1,"v":5}
  • {"r":2,"c":1,"v":18}
  • {"r":2,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [76] → [42, _] → [_, _, _] → [8, 13, 8, 5] → [_, _, _, 2, _]

Show answer

Answer: Row3[3]=13, Row5[3]=6, Row3[1]=21, Row5[1]=1, Row3[2]=21, Row5[2]=7, Row5[5]=3, Row2[2]=34

SubType
number-pyramid
Difficulty
hard
Levels
  • [76]
  • [42,34]
  • [21,21,13]
  • [8,13,8,5]
  • [1,7,6,2,3]
Base
  • 1
  • 7
  • 6
  • 2
  • 3
TopValue
76
HiddenCells
  • {"r":2,"c":2,"v":13}
  • {"r":4,"c":2,"v":6}
  • {"r":2,"c":0,"v":21}
  • {"r":4,"c":0,"v":1}
  • {"r":2,"c":1,"v":21}
  • {"r":4,"c":1,"v":7}
  • {"r":4,"c":4,"v":3}
  • {"r":1,"c":1,"v":34}