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): [_] → [_, 26] → [9, 11, 15] → [7, 2, _, _]

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Answer: Row2[1]=20, Row4[4]=6, Row4[3]=9, Row1[1]=46

SubType
number-pyramid
Difficulty
medium
Levels
  • [46]
  • [20,26]
  • [9,11,15]
  • [7,2,9,6]
Base
  • 7
  • 2
  • 9
  • 6
TopValue
46
HiddenCells
  • {"r":1,"c":0,"v":20}
  • {"r":3,"c":3,"v":6}
  • {"r":3,"c":2,"v":9}
  • {"r":0,"c":0,"v":46}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [25, 13] → [_, 9, _] → [_, 8, 1, 3]

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Answer: Row1[1]=38, Row3[3]=4, Row3[1]=16, Row4[1]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [38]
  • [25,13]
  • [16,9,4]
  • [8,8,1,3]
Base
  • 8
  • 8
  • 1
  • 3
TopValue
38
HiddenCells
  • {"r":0,"c":0,"v":38}
  • {"r":2,"c":2,"v":4}
  • {"r":2,"c":0,"v":16}
  • {"r":3,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [53] → [31, _] → [_, 14, 8] → [_, 7, 7, _]

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Answer: Row2[2]=22, Row4[1]=10, Row4[4]=1, Row3[1]=17

SubType
number-pyramid
Difficulty
medium
Levels
  • [53]
  • [31,22]
  • [17,14,8]
  • [10,7,7,1]
Base
  • 10
  • 7
  • 7
  • 1
TopValue
53
HiddenCells
  • {"r":1,"c":1,"v":22}
  • {"r":3,"c":0,"v":10}
  • {"r":3,"c":3,"v":1}
  • {"r":2,"c":0,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [13, _] → [_, 5, 9] → [5, _, _, 7]

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Answer: Row4[3]=2, Row2[2]=14, Row4[2]=3, Row3[1]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [27]
  • [13,14]
  • [8,5,9]
  • [5,3,2,7]
Base
  • 5
  • 3
  • 2
  • 7
TopValue
27
HiddenCells
  • {"r":3,"c":2,"v":2}
  • {"r":1,"c":1,"v":14}
  • {"r":3,"c":1,"v":3}
  • {"r":2,"c":0,"v":8}