hard Set 39 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, 12] → [18, _, _, 7] → [_, 10, 1, 4, 3]

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Answer: Row2[2]=28, Row3[1]=29, Row5[1]=8, Row1[1]=73, Row4[3]=5, Row3[2]=16, Row4[2]=11, Row2[1]=45

SubType
number-pyramid
Difficulty
hard
Levels
  • [73]
  • [45,28]
  • [29,16,12]
  • [18,11,5,7]
  • [8,10,1,4,3]
Base
  • 8
  • 10
  • 1
  • 4
  • 3
TopValue
73
HiddenCells
  • {"r":1,"c":1,"v":28}
  • {"r":2,"c":0,"v":29}
  • {"r":4,"c":0,"v":8}
  • {"r":0,"c":0,"v":73}
  • {"r":3,"c":2,"v":5}
  • {"r":2,"c":1,"v":16}
  • {"r":3,"c":1,"v":11}
  • {"r":1,"c":0,"v":45}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [87] → [42, _] → [22, _, 25] → [_, _, _, 15] → [_, _, _, 5, 10]

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Answer: Row5[3]=5, Row5[1]=7, Row4[3]=10, Row3[2]=20, Row4[2]=10, Row2[2]=45, Row4[1]=12, Row5[2]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [87]
  • [42,45]
  • [22,20,25]
  • [12,10,10,15]
  • [7,5,5,5,10]
Base
  • 7
  • 5
  • 5
  • 5
  • 10
TopValue
87
HiddenCells
  • {"r":4,"c":2,"v":5}
  • {"r":4,"c":0,"v":7}
  • {"r":3,"c":2,"v":10}
  • {"r":2,"c":1,"v":20}
  • {"r":3,"c":1,"v":10}
  • {"r":1,"c":1,"v":45}
  • {"r":3,"c":0,"v":12}
  • {"r":4,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [80] → [36, 44] → [_, 16, _] → [_, 6, _, _] → [_, _, 2, _, 10]

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Answer: Row3[1]=20, Row5[2]=4, Row4[4]=18, Row3[3]=28, Row5[1]=10, Row4[3]=10, Row4[1]=14, Row5[4]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [80]
  • [36,44]
  • [20,16,28]
  • [14,6,10,18]
  • [10,4,2,8,10]
Base
  • 10
  • 4
  • 2
  • 8
  • 10
TopValue
80
HiddenCells
  • {"r":2,"c":0,"v":20}
  • {"r":4,"c":1,"v":4}
  • {"r":3,"c":3,"v":18}
  • {"r":2,"c":2,"v":28}
  • {"r":4,"c":0,"v":10}
  • {"r":3,"c":2,"v":10}
  • {"r":3,"c":0,"v":14}
  • {"r":4,"c":3,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [70] → [_, _] → [19, _, 21] → [_, _, 9, 12] → [8, _, _, 8, _]

Show answer

Answer: Row5[2]=5, Row4[2]=6, Row5[5]=4, Row5[3]=1, Row4[1]=13, Row2[1]=34, Row2[2]=36, Row3[2]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [70]
  • [34,36]
  • [19,15,21]
  • [13,6,9,12]
  • [8,5,1,8,4]
Base
  • 8
  • 5
  • 1
  • 8
  • 4
TopValue
70
HiddenCells
  • {"r":4,"c":1,"v":5}
  • {"r":3,"c":1,"v":6}
  • {"r":4,"c":4,"v":4}
  • {"r":4,"c":2,"v":1}
  • {"r":3,"c":0,"v":13}
  • {"r":1,"c":0,"v":34}
  • {"r":1,"c":1,"v":36}
  • {"r":2,"c":1,"v":15}