hard Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [101] → [54, _] → [_, _, 21] → [_, _, _, 11] → [_, 10, _, 4, 7]

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Answer: Row4[3]=10, Row5[3]=6, Row3[2]=26, Row4[2]=16, Row4[1]=12, Row2[2]=47, Row3[1]=28, Row5[1]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [101]
  • [54,47]
  • [28,26,21]
  • [12,16,10,11]
  • [2,10,6,4,7]
Base
  • 2
  • 10
  • 6
  • 4
  • 7
TopValue
101
HiddenCells
  • {"r":3,"c":2,"v":10}
  • {"r":4,"c":2,"v":6}
  • {"r":2,"c":1,"v":26}
  • {"r":3,"c":1,"v":16}
  • {"r":3,"c":0,"v":12}
  • {"r":1,"c":1,"v":47}
  • {"r":2,"c":0,"v":28}
  • {"r":4,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 43] → [17, 21, _] → [8, 9, _, _] → [_, _, 8, _, 6]

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Answer: Row5[2]=1, Row3[3]=22, Row5[4]=4, Row1[1]=81, Row4[3]=12, Row5[1]=7, Row4[4]=10, Row2[1]=38

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [38,43]
  • [17,21,22]
  • [8,9,12,10]
  • [7,1,8,4,6]
Base
  • 7
  • 1
  • 8
  • 4
  • 6
TopValue
81
HiddenCells
  • {"r":4,"c":1,"v":1}
  • {"r":2,"c":2,"v":22}
  • {"r":4,"c":3,"v":4}
  • {"r":0,"c":0,"v":81}
  • {"r":3,"c":2,"v":12}
  • {"r":4,"c":0,"v":7}
  • {"r":3,"c":3,"v":10}
  • {"r":1,"c":0,"v":38}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [32, _] → [16, _, _] → [10, 6, _, 9] → [_, 1, _, _, 4]

Show answer

Answer: Row3[2]=16, Row4[3]=10, Row5[4]=5, Row5[1]=9, Row5[3]=5, Row2[2]=35, Row1[1]=67, Row3[3]=19

SubType
number-pyramid
Difficulty
hard
Levels
  • [67]
  • [32,35]
  • [16,16,19]
  • [10,6,10,9]
  • [9,1,5,5,4]
Base
  • 9
  • 1
  • 5
  • 5
  • 4
TopValue
67
HiddenCells
  • {"r":2,"c":1,"v":16}
  • {"r":3,"c":2,"v":10}
  • {"r":4,"c":3,"v":5}
  • {"r":4,"c":0,"v":9}
  • {"r":4,"c":2,"v":5}
  • {"r":1,"c":1,"v":35}
  • {"r":0,"c":0,"v":67}
  • {"r":2,"c":2,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 23, _] → [15, 11, _, 12] → [9, _, 5, 7, _]

Show answer

Answer: Row2[2]=47, Row5[5]=5, Row3[1]=26, Row3[3]=24, Row4[3]=12, Row1[1]=96, Row5[2]=6, Row2[1]=49

SubType
number-pyramid
Difficulty
hard
Levels
  • [96]
  • [49,47]
  • [26,23,24]
  • [15,11,12,12]
  • [9,6,5,7,5]
Base
  • 9
  • 6
  • 5
  • 7
  • 5
TopValue
96
HiddenCells
  • {"r":1,"c":1,"v":47}
  • {"r":4,"c":4,"v":5}
  • {"r":2,"c":0,"v":26}
  • {"r":2,"c":2,"v":24}
  • {"r":3,"c":2,"v":12}
  • {"r":0,"c":0,"v":96}
  • {"r":4,"c":1,"v":6}
  • {"r":1,"c":0,"v":49}