medium Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [36] → [15, 21] → [6, _, 12] → [_, 3, _, _]

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Answer: Row4[1]=3, Row4[3]=6, Row4[4]=6, Row3[2]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [36]
  • [15,21]
  • [6,9,12]
  • [3,3,6,6]
Base
  • 3
  • 3
  • 6
  • 6
TopValue
36
HiddenCells
  • {"r":3,"c":0,"v":3}
  • {"r":3,"c":2,"v":6}
  • {"r":3,"c":3,"v":6}
  • {"r":2,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [30, _] → [13, 17, _] → [6, 7, 10, _]

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Answer: Row3[3]=19, Row4[4]=9, Row2[2]=36, Row1[1]=66

SubType
number-pyramid
Difficulty
medium
Levels
  • [66]
  • [30,36]
  • [13,17,19]
  • [6,7,10,9]
Base
  • 6
  • 7
  • 10
  • 9
TopValue
66
HiddenCells
  • {"r":2,"c":2,"v":19}
  • {"r":3,"c":3,"v":9}
  • {"r":1,"c":1,"v":36}
  • {"r":0,"c":0,"v":66}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [15, 12] → [_, 5, 7] → [6, 4, _, _]

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Answer: Row4[4]=6, Row1[1]=27, Row4[3]=1, Row3[1]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [27]
  • [15,12]
  • [10,5,7]
  • [6,4,1,6]
Base
  • 6
  • 4
  • 1
  • 6
TopValue
27
HiddenCells
  • {"r":3,"c":3,"v":6}
  • {"r":0,"c":0,"v":27}
  • {"r":3,"c":2,"v":1}
  • {"r":2,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [61] → [_, 35] → [10, 16, _] → [_, 6, _, 9]

Show answer

Answer: Row2[1]=26, Row4[3]=10, Row3[3]=19, Row4[1]=4

SubType
number-pyramid
Difficulty
medium
Levels
  • [61]
  • [26,35]
  • [10,16,19]
  • [4,6,10,9]
Base
  • 4
  • 6
  • 10
  • 9
TopValue
61
HiddenCells
  • {"r":1,"c":0,"v":26}
  • {"r":3,"c":2,"v":10}
  • {"r":2,"c":2,"v":19}
  • {"r":3,"c":0,"v":4}