hard Set 28 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [77, _] → [39, _, 36] → [_, _, 18, _] → [9, 10, _, 8, _]

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Answer: Row5[3]=10, Row4[4]=18, Row5[5]=10, Row4[2]=20, Row2[2]=74, Row4[1]=19, Row1[1]=151, Row3[2]=38

SubType
number-pyramid
Difficulty
hard
Levels
  • [151]
  • [77,74]
  • [39,38,36]
  • [19,20,18,18]
  • [9,10,10,8,10]
Base
  • 9
  • 10
  • 10
  • 8
  • 10
TopValue
151
HiddenCells
  • {"r":4,"c":2,"v":10}
  • {"r":3,"c":3,"v":18}
  • {"r":4,"c":4,"v":10}
  • {"r":3,"c":1,"v":20}
  • {"r":1,"c":1,"v":74}
  • {"r":3,"c":0,"v":19}
  • {"r":0,"c":0,"v":151}
  • {"r":2,"c":1,"v":38}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [103] → [_, 47] → [_, _, 19] → [_, 16, _, _] → [5, 7, _, _, 4]

Show answer

Answer: Row3[1]=28, Row4[1]=12, Row2[1]=56, Row4[3]=12, Row5[4]=3, Row4[4]=7, Row3[2]=28, Row5[3]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [103]
  • [56,47]
  • [28,28,19]
  • [12,16,12,7]
  • [5,7,9,3,4]
Base
  • 5
  • 7
  • 9
  • 3
  • 4
TopValue
103
HiddenCells
  • {"r":2,"c":0,"v":28}
  • {"r":3,"c":0,"v":12}
  • {"r":1,"c":0,"v":56}
  • {"r":3,"c":2,"v":12}
  • {"r":4,"c":3,"v":3}
  • {"r":3,"c":3,"v":7}
  • {"r":2,"c":1,"v":28}
  • {"r":4,"c":2,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [45, _] → [_, _, 17] → [_, _, 6, _] → [10, 9, 1, 5, _]

Show answer

Answer: Row1[1]=78, Row3[2]=16, Row3[1]=29, Row4[1]=19, Row5[5]=6, Row4[4]=11, Row4[2]=10, Row2[2]=33

SubType
number-pyramid
Difficulty
hard
Levels
  • [78]
  • [45,33]
  • [29,16,17]
  • [19,10,6,11]
  • [10,9,1,5,6]
Base
  • 10
  • 9
  • 1
  • 5
  • 6
TopValue
78
HiddenCells
  • {"r":0,"c":0,"v":78}
  • {"r":2,"c":1,"v":16}
  • {"r":2,"c":0,"v":29}
  • {"r":3,"c":0,"v":19}
  • {"r":4,"c":4,"v":6}
  • {"r":3,"c":3,"v":11}
  • {"r":3,"c":1,"v":10}
  • {"r":1,"c":1,"v":33}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [43, _] → [21, _, 23] → [9, _, 10, _] → [4, _, 7, _, _]

Show answer

Answer: Row5[5]=10, Row5[4]=3, Row3[2]=22, Row4[2]=12, Row4[4]=13, Row1[1]=88, Row2[2]=45, Row5[2]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [88]
  • [43,45]
  • [21,22,23]
  • [9,12,10,13]
  • [4,5,7,3,10]
Base
  • 4
  • 5
  • 7
  • 3
  • 10
TopValue
88
HiddenCells
  • {"r":4,"c":4,"v":10}
  • {"r":4,"c":3,"v":3}
  • {"r":2,"c":1,"v":22}
  • {"r":3,"c":1,"v":12}
  • {"r":3,"c":3,"v":13}
  • {"r":0,"c":0,"v":88}
  • {"r":1,"c":1,"v":45}
  • {"r":4,"c":1,"v":5}