hard Set 61 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, _] → [13, 9, _, 14] → [8, 5, _, 4, 10]

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Answer: Row4[3]=8, Row2[2]=39, Row5[3]=4, Row2[1]=39, Row3[2]=17, Row3[1]=22, Row1[1]=78, Row3[3]=22

SubType
number-pyramid
Difficulty
hard
Levels
  • [78]
  • [39,39]
  • [22,17,22]
  • [13,9,8,14]
  • [8,5,4,4,10]
Base
  • 8
  • 5
  • 4
  • 4
  • 10
TopValue
78
HiddenCells
  • {"r":3,"c":2,"v":8}
  • {"r":1,"c":1,"v":39}
  • {"r":4,"c":2,"v":4}
  • {"r":1,"c":0,"v":39}
  • {"r":2,"c":1,"v":17}
  • {"r":2,"c":0,"v":22}
  • {"r":0,"c":0,"v":78}
  • {"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): [76] → [_, _] → [_, _, _] → [_, _, 10, 10] → [6, 6, 2, 8, _]

Show answer

Answer: Row3[3]=20, Row3[2]=18, Row3[1]=20, Row2[1]=38, Row4[2]=8, Row4[1]=12, Row2[2]=38, Row5[5]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [76]
  • [38,38]
  • [20,18,20]
  • [12,8,10,10]
  • [6,6,2,8,2]
Base
  • 6
  • 6
  • 2
  • 8
  • 2
TopValue
76
HiddenCells
  • {"r":2,"c":2,"v":20}
  • {"r":2,"c":1,"v":18}
  • {"r":2,"c":0,"v":20}
  • {"r":1,"c":0,"v":38}
  • {"r":3,"c":1,"v":8}
  • {"r":3,"c":0,"v":12}
  • {"r":1,"c":1,"v":38}
  • {"r":4,"c":4,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [24, 25, 27] → [_, _, 13, 14] → [4, _, 4, _, _]

Show answer

Answer: Row5[2]=8, Row2[2]=52, Row4[1]=12, Row2[1]=49, Row5[5]=5, Row1[1]=101, Row4[2]=12, Row5[4]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [101]
  • [49,52]
  • [24,25,27]
  • [12,12,13,14]
  • [4,8,4,9,5]
Base
  • 4
  • 8
  • 4
  • 9
  • 5
TopValue
101
HiddenCells
  • {"r":4,"c":1,"v":8}
  • {"r":1,"c":1,"v":52}
  • {"r":3,"c":0,"v":12}
  • {"r":1,"c":0,"v":49}
  • {"r":4,"c":4,"v":5}
  • {"r":0,"c":0,"v":101}
  • {"r":3,"c":1,"v":12}
  • {"r":4,"c":3,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [54] → [_, 27] → [_, 11, 16] → [_, _, 5, _] → [_, _, _, 2, 9]

Show answer

Answer: Row5[3]=3, Row5[1]=7, Row4[1]=10, Row4[2]=6, Row3[1]=16, Row2[1]=27, Row5[2]=3, Row4[4]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [54]
  • [27,27]
  • [16,11,16]
  • [10,6,5,11]
  • [7,3,3,2,9]
Base
  • 7
  • 3
  • 3
  • 2
  • 9
TopValue
54
HiddenCells
  • {"r":4,"c":2,"v":3}
  • {"r":4,"c":0,"v":7}
  • {"r":3,"c":0,"v":10}
  • {"r":3,"c":1,"v":6}
  • {"r":2,"c":0,"v":16}
  • {"r":1,"c":0,"v":27}
  • {"r":4,"c":1,"v":3}
  • {"r":3,"c":3,"v":11}