medium Set 80 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [67] → [31, _] → [12, _, _] → [2, 10, 9, _]

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Answer: Row3[2]=19, Row4[4]=8, Row3[3]=17, Row2[2]=36

SubType
number-pyramid
Difficulty
medium
Levels
  • [67]
  • [31,36]
  • [12,19,17]
  • [2,10,9,8]
Base
  • 2
  • 10
  • 9
  • 8
TopValue
67
HiddenCells
  • {"r":2,"c":1,"v":19}
  • {"r":3,"c":3,"v":8}
  • {"r":2,"c":2,"v":17}
  • {"r":1,"c":1,"v":36}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [34, _] → [19, 15, _] → [9, 10, _, 5]

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Answer: Row3[3]=10, Row1[1]=59, Row2[2]=25, Row4[3]=5

SubType
number-pyramid
Difficulty
medium
Levels
  • [59]
  • [34,25]
  • [19,15,10]
  • [9,10,5,5]
Base
  • 9
  • 10
  • 5
  • 5
TopValue
59
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"r":0,"c":0,"v":59}
  • {"r":1,"c":1,"v":25}
  • {"r":3,"c":2,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [51] → [31, 20] → [20, 11, 9] → [_, _, _, _]

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Answer: Row4[2]=10, Row4[3]=1, Row4[4]=8, Row4[1]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [51]
  • [31,20]
  • [20,11,9]
  • [10,10,1,8]
Base
  • 10
  • 10
  • 1
  • 8
TopValue
51
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":3,"c":2,"v":1}
  • {"r":3,"c":3,"v":8}
  • {"r":3,"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): [12] → [_, _] → [_, 3, _] → [1, 1, 2, 2]

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Answer: Row3[3]=4, Row2[1]=5, Row3[1]=2, Row2[2]=7

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