medium Set 87 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [18, _] → [_, 9, 8] → [7, 2, 7, _]

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Answer: Row4[4]=1, Row3[1]=9, Row2[2]=17, Row1[1]=35

SubType
number-pyramid
Difficulty
medium
Levels
  • [35]
  • [18,17]
  • [9,9,8]
  • [7,2,7,1]
Base
  • 7
  • 2
  • 7
  • 1
TopValue
35
HiddenCells
  • {"r":3,"c":3,"v":1}
  • {"r":2,"c":0,"v":9}
  • {"r":1,"c":1,"v":17}
  • {"r":0,"c":0,"v":35}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 12] → [11, 2, 10] → [_, _, 1, 9]

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Answer: Row2[1]=13, Row1[1]=25, Row4[2]=1, Row4[1]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [25]
  • [13,12]
  • [11,2,10]
  • [10,1,1,9]
Base
  • 10
  • 1
  • 1
  • 9
TopValue
25
HiddenCells
  • {"r":1,"c":0,"v":13}
  • {"r":0,"c":0,"v":25}
  • {"r":3,"c":1,"v":1}
  • {"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, 19] → [7, 2, 10, 9]

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Answer: Row2[2]=31, Row2[1]=21, Row1[1]=52, Row3[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [52]
  • [21,31]
  • [9,12,19]
  • [7,2,10,9]
Base
  • 7
  • 2
  • 10
  • 9
TopValue
52
HiddenCells
  • {"r":1,"c":1,"v":31}
  • {"r":1,"c":0,"v":21}
  • {"r":0,"c":0,"v":52}
  • {"r":2,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [5, 14, 19] → [1, _, 10, 9]

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Answer: Row2[1]=19, Row2[2]=33, Row4[2]=4, Row1[1]=52

SubType
number-pyramid
Difficulty
medium
Levels
  • [52]
  • [19,33]
  • [5,14,19]
  • [1,4,10,9]
Base
  • 1
  • 4
  • 10
  • 9
TopValue
52
HiddenCells
  • {"r":1,"c":0,"v":19}
  • {"r":1,"c":1,"v":33}
  • {"r":3,"c":1,"v":4}
  • {"r":0,"c":0,"v":52}