medium Set 21 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [38] → [_, 14] → [15, _, 5] → [9, _, _, 2]

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Answer: Row3[2]=9, Row4[2]=6, Row2[1]=24, Row4[3]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [38]
  • [24,14]
  • [15,9,5]
  • [9,6,3,2]
Base
  • 9
  • 6
  • 3
  • 2
TopValue
38
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":3,"c":1,"v":6}
  • {"r":1,"c":0,"v":24}
  • {"r":3,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [67] → [34, _] → [16, _, 15] → [_, 10, _, 7]

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Answer: Row3[2]=18, Row4[3]=8, Row4[1]=6, Row2[2]=33

SubType
number-pyramid
Difficulty
medium
Levels
  • [67]
  • [34,33]
  • [16,18,15]
  • [6,10,8,7]
Base
  • 6
  • 10
  • 8
  • 7
TopValue
67
HiddenCells
  • {"r":2,"c":1,"v":18}
  • {"r":3,"c":2,"v":8}
  • {"r":3,"c":0,"v":6}
  • {"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): [27] → [17, 10] → [_, _, _] → [10, _, 1, 5]

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Answer: Row3[3]=6, Row3[1]=13, Row3[2]=4, Row4[2]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [27]
  • [17,10]
  • [13,4,6]
  • [10,3,1,5]
Base
  • 10
  • 3
  • 1
  • 5
TopValue
27
HiddenCells
  • {"r":2,"c":2,"v":6}
  • {"r":2,"c":0,"v":13}
  • {"r":2,"c":1,"v":4}
  • {"r":3,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [14, _] → [6, 8, _] → [_, 2, 6, 3]

Show answer

Answer: Row4[1]=4, Row1[1]=31, Row2[2]=17, Row3[3]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [31]
  • [14,17]
  • [6,8,9]
  • [4,2,6,3]
Base
  • 4
  • 2
  • 6
  • 3
TopValue
31
HiddenCells
  • {"r":3,"c":0,"v":4}
  • {"r":0,"c":0,"v":31}
  • {"r":1,"c":1,"v":17}
  • {"r":2,"c":2,"v":9}