medium Set 19 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, 15] → [_, 4, 11] → [_, 2, _, 9]

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Answer: Row1[1]=23, Row4[3]=2, Row4[1]=2, Row3[1]=4

SubType
number-pyramid
Difficulty
medium
Levels
  • [23]
  • [8,15]
  • [4,4,11]
  • [2,2,2,9]
Base
  • 2
  • 2
  • 2
  • 9
TopValue
23
HiddenCells
  • {"r":0,"c":0,"v":23}
  • {"r":3,"c":2,"v":2}
  • {"r":3,"c":0,"v":2}
  • {"r":2,"c":0,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 23] → [10, 10, 13] → [_, 4, _, 7]

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Answer: Row1[1]=43, Row2[1]=20, Row4[1]=6, Row4[3]=6

SubType
number-pyramid
Difficulty
medium
Levels
  • [43]
  • [20,23]
  • [10,10,13]
  • [6,4,6,7]
Base
  • 6
  • 4
  • 6
  • 7
TopValue
43
HiddenCells
  • {"r":0,"c":0,"v":43}
  • {"r":1,"c":0,"v":20}
  • {"r":3,"c":0,"v":6}
  • {"r":3,"c":2,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [_, 11] → [_, 7, _] → [8, 5, _, 2]

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Answer: Row3[3]=4, Row2[1]=20, Row4[3]=2, Row3[1]=13

SubType
number-pyramid
Difficulty
medium
Levels
  • [31]
  • [20,11]
  • [13,7,4]
  • [8,5,2,2]
Base
  • 8
  • 5
  • 2
  • 2
TopValue
31
HiddenCells
  • {"r":2,"c":2,"v":4}
  • {"r":1,"c":0,"v":20}
  • {"r":3,"c":2,"v":2}
  • {"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): [61] → [_, 31] → [12, 18, 13] → [_, 8, _, _]

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Answer: Row4[3]=10, Row4[1]=4, Row2[1]=30, Row4[4]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [61]
  • [30,31]
  • [12,18,13]
  • [4,8,10,3]
Base
  • 4
  • 8
  • 10
  • 3
TopValue
61
HiddenCells
  • {"r":3,"c":2,"v":10}
  • {"r":3,"c":0,"v":4}
  • {"r":1,"c":0,"v":30}
  • {"r":3,"c":3,"v":3}