hard Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [14, _, _] → [5, 9, _, _] → [2, 3, _, 6, 9]

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Answer: Row3[2]=21, Row2[1]=35, Row2[2]=48, Row3[3]=27, Row5[3]=6, Row4[3]=12, Row1[1]=83, Row4[4]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [83]
  • [35,48]
  • [14,21,27]
  • [5,9,12,15]
  • [2,3,6,6,9]
Base
  • 2
  • 3
  • 6
  • 6
  • 9
TopValue
83
HiddenCells
  • {"r":2,"c":1,"v":21}
  • {"r":1,"c":0,"v":35}
  • {"r":1,"c":1,"v":48}
  • {"r":2,"c":2,"v":27}
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":2,"v":12}
  • {"r":0,"c":0,"v":83}
  • {"r":3,"c":3,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [102] → [55, _] → [_, _, 24] → [20, _, 11, _] → [_, 10, _, _, 4]

Show answer

Answer: Row5[3]=2, Row3[2]=23, Row4[4]=13, Row2[2]=47, Row4[2]=12, Row5[4]=9, Row3[1]=32, Row5[1]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [102]
  • [55,47]
  • [32,23,24]
  • [20,12,11,13]
  • [10,10,2,9,4]
Base
  • 10
  • 10
  • 2
  • 9
  • 4
TopValue
102
HiddenCells
  • {"r":4,"c":2,"v":2}
  • {"r":2,"c":1,"v":23}
  • {"r":3,"c":3,"v":13}
  • {"r":1,"c":1,"v":47}
  • {"r":3,"c":1,"v":12}
  • {"r":4,"c":3,"v":9}
  • {"r":2,"c":0,"v":32}
  • {"r":4,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [59] → [_, 36] → [9, _, _] → [_, 4, _, 12] → [2, 3, _, _, _]

Show answer

Answer: Row5[5]=3, Row3[2]=14, Row4[1]=5, Row5[3]=1, Row2[1]=23, Row4[3]=10, Row5[4]=9, Row3[3]=22

SubType
number-pyramid
Difficulty
hard
Levels
  • [59]
  • [23,36]
  • [9,14,22]
  • [5,4,10,12]
  • [2,3,1,9,3]
Base
  • 2
  • 3
  • 1
  • 9
  • 3
TopValue
59
HiddenCells
  • {"r":4,"c":4,"v":3}
  • {"r":2,"c":1,"v":14}
  • {"r":3,"c":0,"v":5}
  • {"r":4,"c":2,"v":1}
  • {"r":1,"c":0,"v":23}
  • {"r":3,"c":2,"v":10}
  • {"r":4,"c":3,"v":9}
  • {"r":2,"c":2,"v":22}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, 27] → [_, 14, 14, _] → [1, 7, _, 7, 6]

Show answer

Answer: Row2[2]=55, Row5[3]=7, Row4[1]=8, Row1[1]=105, Row3[2]=28, Row4[4]=13, Row3[1]=22, Row2[1]=50

SubType
number-pyramid
Difficulty
hard
Levels
  • [105]
  • [50,55]
  • [22,28,27]
  • [8,14,14,13]
  • [1,7,7,7,6]
Base
  • 1
  • 7
  • 7
  • 7
  • 6
TopValue
105
HiddenCells
  • {"r":1,"c":1,"v":55}
  • {"r":4,"c":2,"v":7}
  • {"r":3,"c":0,"v":8}
  • {"r":0,"c":0,"v":105}
  • {"r":2,"c":1,"v":28}
  • {"r":3,"c":3,"v":13}
  • {"r":2,"c":0,"v":22}
  • {"r":1,"c":0,"v":50}