hard Set 67 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [31, 19] → [_, 12, _] → [11, _, 4, _] → [_, _, 2, 2, _]

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Answer: Row3[3]=7, Row3[1]=19, Row4[4]=3, Row5[2]=6, Row5[5]=1, Row4[2]=8, Row5[1]=5, Row1[1]=50

SubType
number-pyramid
Difficulty
hard
Levels
  • [50]
  • [31,19]
  • [19,12,7]
  • [11,8,4,3]
  • [5,6,2,2,1]
Base
  • 5
  • 6
  • 2
  • 2
  • 1
TopValue
50
HiddenCells
  • {"r":2,"c":2,"v":7}
  • {"r":2,"c":0,"v":19}
  • {"r":3,"c":3,"v":3}
  • {"r":4,"c":1,"v":6}
  • {"r":4,"c":4,"v":1}
  • {"r":3,"c":1,"v":8}
  • {"r":4,"c":0,"v":5}
  • {"r":0,"c":0,"v":50}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [46, _] → [24, 22, _] → [_, 13, 9, _] → [4, 7, _, _, _]

Show answer

Answer: Row5[4]=3, Row1[1]=88, Row5[3]=6, Row4[4]=11, Row2[2]=42, Row5[5]=8, Row3[3]=20, Row4[1]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [88]
  • [46,42]
  • [24,22,20]
  • [11,13,9,11]
  • [4,7,6,3,8]
Base
  • 4
  • 7
  • 6
  • 3
  • 8
TopValue
88
HiddenCells
  • {"r":4,"c":3,"v":3}
  • {"r":0,"c":0,"v":88}
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":3,"v":11}
  • {"r":1,"c":1,"v":42}
  • {"r":4,"c":4,"v":8}
  • {"r":2,"c":2,"v":20}
  • {"r":3,"c":0,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 18, 31] → [7, 5, _, _] → [6, _, 4, 9, _]

Show answer

Answer: Row4[4]=18, Row5[2]=1, Row2[2]=49, Row2[1]=30, Row1[1]=79, Row5[5]=9, Row3[1]=12, Row4[3]=13

SubType
number-pyramid
Difficulty
hard
Levels
  • [79]
  • [30,49]
  • [12,18,31]
  • [7,5,13,18]
  • [6,1,4,9,9]
Base
  • 6
  • 1
  • 4
  • 9
  • 9
TopValue
79
HiddenCells
  • {"r":3,"c":3,"v":18}
  • {"r":4,"c":1,"v":1}
  • {"r":1,"c":1,"v":49}
  • {"r":1,"c":0,"v":30}
  • {"r":0,"c":0,"v":79}
  • {"r":4,"c":4,"v":9}
  • {"r":2,"c":0,"v":12}
  • {"r":3,"c":2,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [89] → [_, _] → [_, 21, _] → [16, _, 8, 10] → [8, _, _, _, 7]

Show answer

Answer: Row5[2]=8, Row2[2]=39, Row5[3]=5, Row4[2]=13, Row5[4]=3, Row2[1]=50, Row3[3]=18, Row3[1]=29

SubType
number-pyramid
Difficulty
hard
Levels
  • [89]
  • [50,39]
  • [29,21,18]
  • [16,13,8,10]
  • [8,8,5,3,7]
Base
  • 8
  • 8
  • 5
  • 3
  • 7
TopValue
89
HiddenCells
  • {"r":4,"c":1,"v":8}
  • {"r":1,"c":1,"v":39}
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":1,"v":13}
  • {"r":4,"c":3,"v":3}
  • {"r":1,"c":0,"v":50}
  • {"r":2,"c":2,"v":18}
  • {"r":2,"c":0,"v":29}