medium Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [28, _] → [11, 17, _] → [3, 8, 9, _]

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Answer: Row4[4]=3, Row1[1]=57, Row3[3]=12, Row2[2]=29

SubType
number-pyramid
Difficulty
medium
Levels
  • [57]
  • [28,29]
  • [11,17,12]
  • [3,8,9,3]
Base
  • 3
  • 8
  • 9
  • 3
TopValue
57
HiddenCells
  • {"r":3,"c":3,"v":3}
  • {"r":0,"c":0,"v":57}
  • {"r":2,"c":2,"v":12}
  • {"r":1,"c":1,"v":29}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 18] → [6, _, _] → [1, 5, _, 9]

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Answer: Row4[3]=2, Row1[1]=31, Row3[2]=7, Row3[3]=11

SubType
number-pyramid
Difficulty
medium
Levels
  • [31]
  • [13,18]
  • [6,7,11]
  • [1,5,2,9]
Base
  • 1
  • 5
  • 2
  • 9
TopValue
31
HiddenCells
  • {"r":3,"c":2,"v":2}
  • {"r":0,"c":0,"v":31}
  • {"r":2,"c":1,"v":7}
  • {"r":2,"c":2,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [60] → [27, 33] → [_, 14, 19] → [_, _, 10, _]

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Answer: Row3[1]=13, Row4[4]=9, Row4[2]=4, Row4[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [60]
  • [27,33]
  • [13,14,19]
  • [9,4,10,9]
Base
  • 9
  • 4
  • 10
  • 9
TopValue
60
HiddenCells
  • {"r":2,"c":0,"v":13}
  • {"r":3,"c":3,"v":9}
  • {"r":3,"c":1,"v":4}
  • {"r":3,"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): [47] → [_, _] → [_, 13, 11] → [3, _, 6, 5]

Show answer

Answer: Row2[2]=24, Row4[2]=7, Row2[1]=23, Row3[1]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [47]
  • [23,24]
  • [10,13,11]
  • [3,7,6,5]
Base
  • 3
  • 7
  • 6
  • 5
TopValue
47
HiddenCells
  • {"r":1,"c":1,"v":24}
  • {"r":3,"c":1,"v":7}
  • {"r":1,"c":0,"v":23}
  • {"r":2,"c":0,"v":10}