hard Set 12 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 47] → [_, _, 27] → [11, _, _, _] → [4, 7, 2, 9, _]

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Answer: Row2[1]=40, Row4[3]=11, Row3[1]=20, Row1[1]=87, Row4[2]=9, Row4[4]=16, Row5[5]=7, Row3[2]=20

SubType
number-pyramid
Difficulty
hard
Levels
  • [87]
  • [40,47]
  • [20,20,27]
  • [11,9,11,16]
  • [4,7,2,9,7]
Base
  • 4
  • 7
  • 2
  • 9
  • 7
TopValue
87
HiddenCells
  • {"r":1,"c":0,"v":40}
  • {"r":3,"c":2,"v":11}
  • {"r":2,"c":0,"v":20}
  • {"r":0,"c":0,"v":87}
  • {"r":3,"c":1,"v":9}
  • {"r":3,"c":3,"v":16}
  • {"r":4,"c":4,"v":7}
  • {"r":2,"c":1,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [72] → [_, _] → [_, _, 23] → [_, 5, _, 12] → [_, 4, 1, _, 2]

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Answer: Row5[1]=8, Row4[3]=11, Row3[2]=16, Row2[1]=33, Row4[1]=12, Row3[1]=17, Row5[4]=10, Row2[2]=39

SubType
number-pyramid
Difficulty
hard
Levels
  • [72]
  • [33,39]
  • [17,16,23]
  • [12,5,11,12]
  • [8,4,1,10,2]
Base
  • 8
  • 4
  • 1
  • 10
  • 2
TopValue
72
HiddenCells
  • {"r":4,"c":0,"v":8}
  • {"r":3,"c":2,"v":11}
  • {"r":2,"c":1,"v":16}
  • {"r":1,"c":0,"v":33}
  • {"r":3,"c":0,"v":12}
  • {"r":2,"c":0,"v":17}
  • {"r":4,"c":3,"v":10}
  • {"r":1,"c":1,"v":39}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [48] → [23, _] → [11, 12, 13] → [_, _, _, _] → [_, 2, 3, _, _]

Show answer

Answer: Row4[3]=7, Row4[2]=5, Row5[1]=4, Row4[1]=6, Row5[5]=2, Row2[2]=25, Row4[4]=6, Row5[4]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [48]
  • [23,25]
  • [11,12,13]
  • [6,5,7,6]
  • [4,2,3,4,2]
Base
  • 4
  • 2
  • 3
  • 4
  • 2
TopValue
48
HiddenCells
  • {"r":3,"c":2,"v":7}
  • {"r":3,"c":1,"v":5}
  • {"r":4,"c":0,"v":4}
  • {"r":3,"c":0,"v":6}
  • {"r":4,"c":4,"v":2}
  • {"r":1,"c":1,"v":25}
  • {"r":3,"c":3,"v":6}
  • {"r":4,"c":3,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [97] → [49, _] → [22, 27, 21] → [_, _, _, _] → [2, _, 10, _, _]

Show answer

Answer: Row5[5]=7, Row4[1]=7, Row4[4]=9, Row4[3]=12, Row5[2]=5, Row4[2]=15, Row2[2]=48, Row5[4]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [97]
  • [49,48]
  • [22,27,21]
  • [7,15,12,9]
  • [2,5,10,2,7]
Base
  • 2
  • 5
  • 10
  • 2
  • 7
TopValue
97
HiddenCells
  • {"r":4,"c":4,"v":7}
  • {"r":3,"c":0,"v":7}
  • {"r":3,"c":3,"v":9}
  • {"r":3,"c":2,"v":12}
  • {"r":4,"c":1,"v":5}
  • {"r":3,"c":1,"v":15}
  • {"r":1,"c":1,"v":48}
  • {"r":4,"c":3,"v":2}