hard Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [53, 42] → [_, 27, _] → [_, _, _, 4] → [2, 8, _, _, 1]

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Answer: Row4[1]=10, Row4[2]=16, Row5[4]=3, Row4[3]=11, Row3[1]=26, Row1[1]=95, Row5[3]=8, Row3[3]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [95]
  • [53,42]
  • [26,27,15]
  • [10,16,11,4]
  • [2,8,8,3,1]
Base
  • 2
  • 8
  • 8
  • 3
  • 1
TopValue
95
HiddenCells
  • {"r":3,"c":0,"v":10}
  • {"r":3,"c":1,"v":16}
  • {"r":4,"c":3,"v":3}
  • {"r":3,"c":2,"v":11}
  • {"r":2,"c":0,"v":26}
  • {"r":0,"c":0,"v":95}
  • {"r":4,"c":2,"v":8}
  • {"r":2,"c":2,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [51] → [_, 25] → [_, 14, _] → [5, _, _, _] → [2, _, 4, 3, _]

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Answer: Row2[1]=26, Row3[3]=11, Row4[2]=7, Row5[5]=1, Row4[3]=7, Row5[2]=3, Row3[1]=12, Row4[4]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [51]
  • [26,25]
  • [12,14,11]
  • [5,7,7,4]
  • [2,3,4,3,1]
Base
  • 2
  • 3
  • 4
  • 3
  • 1
TopValue
51
HiddenCells
  • {"r":1,"c":0,"v":26}
  • {"r":2,"c":2,"v":11}
  • {"r":3,"c":1,"v":7}
  • {"r":4,"c":4,"v":1}
  • {"r":3,"c":2,"v":7}
  • {"r":4,"c":1,"v":3}
  • {"r":2,"c":0,"v":12}
  • {"r":3,"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): [49] → [_, _] → [_, _, 16] → [10, _, _, 12] → [_, 4, 1, _, 9]

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Answer: Row3[2]=9, Row2[1]=24, Row4[2]=5, Row4[3]=4, Row5[1]=6, Row5[4]=3, Row3[1]=15, Row2[2]=25

SubType
number-pyramid
Difficulty
hard
Levels
  • [49]
  • [24,25]
  • [15,9,16]
  • [10,5,4,12]
  • [6,4,1,3,9]
Base
  • 6
  • 4
  • 1
  • 3
  • 9
TopValue
49
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":1,"c":0,"v":24}
  • {"r":3,"c":1,"v":5}
  • {"r":3,"c":2,"v":4}
  • {"r":4,"c":0,"v":6}
  • {"r":4,"c":3,"v":3}
  • {"r":2,"c":0,"v":15}
  • {"r":1,"c":1,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [70, _] → [_, 32, 22] → [_, 19, 13, 9] → [_, _, _, 4, _]

Show answer

Answer: Row4[1]=19, Row5[2]=10, Row5[3]=9, Row5[1]=9, Row3[1]=38, Row1[1]=124, Row5[5]=5, Row2[2]=54

SubType
number-pyramid
Difficulty
hard
Levels
  • [124]
  • [70,54]
  • [38,32,22]
  • [19,19,13,9]
  • [9,10,9,4,5]
Base
  • 9
  • 10
  • 9
  • 4
  • 5
TopValue
124
HiddenCells
  • {"r":3,"c":0,"v":19}
  • {"r":4,"c":1,"v":10}
  • {"r":4,"c":2,"v":9}
  • {"r":4,"c":0,"v":9}
  • {"r":2,"c":0,"v":38}
  • {"r":0,"c":0,"v":124}
  • {"r":4,"c":4,"v":5}
  • {"r":1,"c":1,"v":54}