hard Set 27 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 23, 28] → [_, _, 12, _] → [6, 9, _, 10, 6]

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Answer: Row4[1]=15, Row1[1]=100, Row5[3]=2, Row4[4]=16, Row3[1]=26, Row2[2]=51, Row2[1]=49, Row4[2]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [100]
  • [49,51]
  • [26,23,28]
  • [15,11,12,16]
  • [6,9,2,10,6]
Base
  • 6
  • 9
  • 2
  • 10
  • 6
TopValue
100
HiddenCells
  • {"r":3,"c":0,"v":15}
  • {"r":0,"c":0,"v":100}
  • {"r":4,"c":2,"v":2}
  • {"r":3,"c":3,"v":16}
  • {"r":2,"c":0,"v":26}
  • {"r":1,"c":1,"v":51}
  • {"r":1,"c":0,"v":49}
  • {"r":3,"c":1,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [87] → [_, 39] → [_, _, 13] → [_, _, _, _] → [2, _, 10, 1, 1]

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Answer: Row4[2]=15, Row4[3]=11, Row4[1]=7, Row3[1]=22, Row3[2]=26, Row5[2]=5, Row2[1]=48, Row4[4]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [87]
  • [48,39]
  • [22,26,13]
  • [7,15,11,2]
  • [2,5,10,1,1]
Base
  • 2
  • 5
  • 10
  • 1
  • 1
TopValue
87
HiddenCells
  • {"r":3,"c":1,"v":15}
  • {"r":3,"c":2,"v":11}
  • {"r":3,"c":0,"v":7}
  • {"r":2,"c":0,"v":22}
  • {"r":2,"c":1,"v":26}
  • {"r":4,"c":1,"v":5}
  • {"r":1,"c":0,"v":48}
  • {"r":3,"c":3,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [97] → [_, _] → [_, 24, 22] → [_, 15, _, _] → [2, _, 5, 4, _]

Show answer

Answer: Row4[4]=13, Row2[1]=51, Row2[2]=46, Row5[2]=10, Row3[1]=27, Row4[3]=9, Row4[1]=12, Row5[5]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [97]
  • [51,46]
  • [27,24,22]
  • [12,15,9,13]
  • [2,10,5,4,9]
Base
  • 2
  • 10
  • 5
  • 4
  • 9
TopValue
97
HiddenCells
  • {"r":3,"c":3,"v":13}
  • {"r":1,"c":0,"v":51}
  • {"r":1,"c":1,"v":46}
  • {"r":4,"c":1,"v":10}
  • {"r":2,"c":0,"v":27}
  • {"r":3,"c":2,"v":9}
  • {"r":3,"c":0,"v":12}
  • {"r":4,"c":4,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [77] → [38, 39] → [_, _, _] → [_, _, _, _] → [9, _, 7, 5, 2]

Show answer

Answer: Row3[2]=20, Row3[1]=18, Row3[3]=19, Row4[4]=7, Row4[1]=10, Row4[2]=8, Row4[3]=12, Row5[2]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [77]
  • [38,39]
  • [18,20,19]
  • [10,8,12,7]
  • [9,1,7,5,2]
Base
  • 9
  • 1
  • 7
  • 5
  • 2
TopValue
77
HiddenCells
  • {"r":2,"c":1,"v":20}
  • {"r":2,"c":0,"v":18}
  • {"r":2,"c":2,"v":19}
  • {"r":3,"c":3,"v":7}
  • {"r":3,"c":0,"v":10}
  • {"r":3,"c":1,"v":8}
  • {"r":3,"c":2,"v":12}
  • {"r":4,"c":1,"v":1}