medium 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): [49] → [25, 24] → [_, 12, _] → [5, 8, _, _]

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Answer: Row4[3]=4, Row4[4]=8, Row3[3]=12, Row3[1]=13

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [25,24]
  • [13,12,12]
  • [5,8,4,8]
Base
  • 5
  • 8
  • 4
  • 8
TopValue
49
HiddenCells
  • {"r":3,"c":2,"v":4}
  • {"r":3,"c":3,"v":8}
  • {"r":2,"c":2,"v":12}
  • {"r":2,"c":0,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [10, 9, 17] → [8, 2, 7, _]

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Answer: Row1[1]=45, Row2[1]=19, Row4[4]=10, Row2[2]=26

SubType
number-pyramid
Difficulty
medium
Levels
  • [45]
  • [19,26]
  • [10,9,17]
  • [8,2,7,10]
Base
  • 8
  • 2
  • 7
  • 10
TopValue
45
HiddenCells
  • {"r":0,"c":0,"v":45}
  • {"r":1,"c":0,"v":19}
  • {"r":3,"c":3,"v":10}
  • {"r":1,"c":1,"v":26}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [_, _] → [_, 8, _] → [5, 1, 7, 2]

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Answer: Row2[2]=17, Row2[1]=14, Row3[3]=9, Row3[1]=6

SubType
number-pyramid
Difficulty
medium
Levels
  • [31]
  • [14,17]
  • [6,8,9]
  • [5,1,7,2]
Base
  • 5
  • 1
  • 7
  • 2
TopValue
31
HiddenCells
  • {"r":1,"c":1,"v":17}
  • {"r":1,"c":0,"v":14}
  • {"r":2,"c":2,"v":9}
  • {"r":2,"c":0,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [69] → [_, _] → [14, _, 19] → [6, 8, _, 9]

Show answer

Answer: Row4[3]=10, Row3[2]=18, Row2[1]=32, Row2[2]=37

SubType
number-pyramid
Difficulty
medium
Levels
  • [69]
  • [32,37]
  • [14,18,19]
  • [6,8,10,9]
Base
  • 6
  • 8
  • 10
  • 9
TopValue
69
HiddenCells
  • {"r":3,"c":2,"v":10}
  • {"r":2,"c":1,"v":18}
  • {"r":1,"c":0,"v":32}
  • {"r":1,"c":1,"v":37}