hard Set 80 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 16, 23] → [11, _, 10, _] → [_, _, 4, 6, 7]

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Answer: Row4[2]=6, Row3[1]=17, Row2[2]=39, Row5[1]=9, Row1[1]=72, Row4[4]=13, Row2[1]=33, Row5[2]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [72]
  • [33,39]
  • [17,16,23]
  • [11,6,10,13]
  • [9,2,4,6,7]
Base
  • 9
  • 2
  • 4
  • 6
  • 7
TopValue
72
HiddenCells
  • {"r":3,"c":1,"v":6}
  • {"r":2,"c":0,"v":17}
  • {"r":1,"c":1,"v":39}
  • {"r":4,"c":0,"v":9}
  • {"r":0,"c":0,"v":72}
  • {"r":3,"c":3,"v":13}
  • {"r":1,"c":0,"v":33}
  • {"r":4,"c":1,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [22, _] → [10, _, _] → [4, 6, 6, _] → [_, _, 5, _, 5]

Show answer

Answer: Row4[4]=6, Row1[1]=46, Row5[2]=1, Row3[3]=12, Row2[2]=24, Row3[2]=12, Row5[4]=1, Row5[1]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [46]
  • [22,24]
  • [10,12,12]
  • [4,6,6,6]
  • [3,1,5,1,5]
Base
  • 3
  • 1
  • 5
  • 1
  • 5
TopValue
46
HiddenCells
  • {"r":3,"c":3,"v":6}
  • {"r":0,"c":0,"v":46}
  • {"r":4,"c":1,"v":1}
  • {"r":2,"c":2,"v":12}
  • {"r":1,"c":1,"v":24}
  • {"r":2,"c":1,"v":12}
  • {"r":4,"c":3,"v":1}
  • {"r":4,"c":0,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [111] → [49, 62] → [20, _, _] → [_, 12, _, _] → [_, _, 9, 8, _]

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Answer: Row5[1]=5, Row4[1]=8, Row3[2]=29, Row5[5]=8, Row3[3]=33, Row5[2]=3, Row4[4]=16, Row4[3]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [111]
  • [49,62]
  • [20,29,33]
  • [8,12,17,16]
  • [5,3,9,8,8]
Base
  • 5
  • 3
  • 9
  • 8
  • 8
TopValue
111
HiddenCells
  • {"r":4,"c":0,"v":5}
  • {"r":3,"c":0,"v":8}
  • {"r":2,"c":1,"v":29}
  • {"r":4,"c":4,"v":8}
  • {"r":2,"c":2,"v":33}
  • {"r":4,"c":1,"v":3}
  • {"r":3,"c":3,"v":16}
  • {"r":3,"c":2,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [90] → [_, 51] → [17, 22, _] → [_, 8, _, 15] → [_, _, _, 9, _]

Show answer

Answer: Row3[3]=29, Row2[1]=39, Row5[2]=3, Row5[5]=6, Row5[3]=5, Row4[1]=9, Row5[1]=6, Row4[3]=14

SubType
number-pyramid
Difficulty
hard
Levels
  • [90]
  • [39,51]
  • [17,22,29]
  • [9,8,14,15]
  • [6,3,5,9,6]
Base
  • 6
  • 3
  • 5
  • 9
  • 6
TopValue
90
HiddenCells
  • {"r":2,"c":2,"v":29}
  • {"r":1,"c":0,"v":39}
  • {"r":4,"c":1,"v":3}
  • {"r":4,"c":4,"v":6}
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":0,"v":9}
  • {"r":4,"c":0,"v":6}
  • {"r":3,"c":2,"v":14}