medium Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [40] → [26, 14] → [15, _, _] → [5, _, 1, _]

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Answer: Row4[2]=10, Row3[3]=3, Row4[4]=2, Row3[2]=11

SubType
number-pyramid
Difficulty
medium
Levels
  • [40]
  • [26,14]
  • [15,11,3]
  • [5,10,1,2]
Base
  • 5
  • 10
  • 1
  • 2
TopValue
40
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":2,"c":2,"v":3}
  • {"r":3,"c":3,"v":2}
  • {"r":2,"c":1,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [14, _] → [10, _, 7] → [9, 1, 3, _]

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Answer: Row3[2]=4, Row4[4]=4, Row2[2]=11, Row1[1]=25

SubType
number-pyramid
Difficulty
medium
Levels
  • [25]
  • [14,11]
  • [10,4,7]
  • [9,1,3,4]
Base
  • 9
  • 1
  • 3
  • 4
TopValue
25
HiddenCells
  • {"r":2,"c":1,"v":4}
  • {"r":3,"c":3,"v":4}
  • {"r":1,"c":1,"v":11}
  • {"r":0,"c":0,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 15] → [_, 7, 8] → [10, 5, _, 6]

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Answer: Row4[3]=2, Row1[1]=37, Row3[1]=15, Row2[1]=22

SubType
number-pyramid
Difficulty
medium
Levels
  • [37]
  • [22,15]
  • [15,7,8]
  • [10,5,2,6]
Base
  • 10
  • 5
  • 2
  • 6
TopValue
37
HiddenCells
  • {"r":3,"c":2,"v":2}
  • {"r":0,"c":0,"v":37}
  • {"r":2,"c":0,"v":15}
  • {"r":1,"c":0,"v":22}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [6, _, 9] → [1, 5, 5, 4]

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Answer: Row2[1]=16, Row3[2]=10, Row2[2]=19, Row1[1]=35

SubType
number-pyramid
Difficulty
medium
Levels
  • [35]
  • [16,19]
  • [6,10,9]
  • [1,5,5,4]
Base
  • 1
  • 5
  • 5
  • 4
TopValue
35
HiddenCells
  • {"r":1,"c":0,"v":16}
  • {"r":2,"c":1,"v":10}
  • {"r":1,"c":1,"v":19}
  • {"r":0,"c":0,"v":35}