medium Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [15, 27] → [_, 10, 17] → [4, 1, _, _]

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Answer: Row4[3]=9, Row1[1]=42, Row3[1]=5, Row4[4]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [42]
  • [15,27]
  • [5,10,17]
  • [4,1,9,8]
Base
  • 4
  • 1
  • 9
  • 8
TopValue
42
HiddenCells
  • {"r":3,"c":2,"v":9}
  • {"r":0,"c":0,"v":42}
  • {"r":2,"c":0,"v":5}
  • {"r":3,"c":3,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 17, 16] → [9, 10, 7, 9]

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Answer: Row2[2]=33, Row2[1]=36, Row1[1]=69, Row3[1]=19

SubType
number-pyramid
Difficulty
medium
Levels
  • [69]
  • [36,33]
  • [19,17,16]
  • [9,10,7,9]
Base
  • 9
  • 10
  • 7
  • 9
TopValue
69
HiddenCells
  • {"r":1,"c":1,"v":33}
  • {"r":1,"c":0,"v":36}
  • {"r":0,"c":0,"v":69}
  • {"r":2,"c":0,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [25, 22] → [13, _, 10] → [_, 9, 3, _]

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Answer: Row4[4]=7, Row3[2]=12, Row4[1]=4, Row1[1]=47

SubType
number-pyramid
Difficulty
medium
Levels
  • [47]
  • [25,22]
  • [13,12,10]
  • [4,9,3,7]
Base
  • 4
  • 9
  • 3
  • 7
TopValue
47
HiddenCells
  • {"r":3,"c":3,"v":7}
  • {"r":2,"c":1,"v":12}
  • {"r":3,"c":0,"v":4}
  • {"r":0,"c":0,"v":47}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [17, _] → [8, 9, _] → [4, 4, 5, _]

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Answer: Row3[3]=11, Row4[4]=6, Row2[2]=20, Row1[1]=37

SubType
number-pyramid
Difficulty
medium
Levels
  • [37]
  • [17,20]
  • [8,9,11]
  • [4,4,5,6]
Base
  • 4
  • 4
  • 5
  • 6
TopValue
37
HiddenCells
  • {"r":2,"c":2,"v":11}
  • {"r":3,"c":3,"v":6}
  • {"r":1,"c":1,"v":20}
  • {"r":0,"c":0,"v":37}