medium Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [6, 12] → [_, _, 9] → [1, 2, _, 8]

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Answer: Row1[1]=18, Row3[2]=3, Row3[1]=3, Row4[3]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [18]
  • [6,12]
  • [3,3,9]
  • [1,2,1,8]
Base
  • 1
  • 2
  • 1
  • 8
TopValue
18
HiddenCells
  • {"r":0,"c":0,"v":18}
  • {"r":2,"c":1,"v":3}
  • {"r":2,"c":0,"v":3}
  • {"r":3,"c":2,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [21, _] → [13, 8, 5] → [_, _, 4, 1]

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Answer: Row4[2]=4, Row4[1]=9, Row2[2]=13, Row1[1]=34

SubType
number-pyramid
Difficulty
medium
Levels
  • [34]
  • [21,13]
  • [13,8,5]
  • [9,4,4,1]
Base
  • 9
  • 4
  • 4
  • 1
TopValue
34
HiddenCells
  • {"r":3,"c":1,"v":4}
  • {"r":3,"c":0,"v":9}
  • {"r":1,"c":1,"v":13}
  • {"r":0,"c":0,"v":34}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [58] → [31, 27] → [13, _, 9] → [_, _, _, 1]

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Answer: Row3[2]=18, Row4[2]=10, Row4[1]=3, Row4[3]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [58]
  • [31,27]
  • [13,18,9]
  • [3,10,8,1]
Base
  • 3
  • 10
  • 8
  • 1
TopValue
58
HiddenCells
  • {"r":2,"c":1,"v":18}
  • {"r":3,"c":1,"v":10}
  • {"r":3,"c":0,"v":3}
  • {"r":3,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [46] → [_, 20] → [14, 12, 8] → [_, _, _, 1]

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Answer: Row2[1]=26, Row4[2]=5, Row4[3]=7, Row4[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [46]
  • [26,20]
  • [14,12,8]
  • [9,5,7,1]
Base
  • 9
  • 5
  • 7
  • 1
TopValue
46
HiddenCells
  • {"r":1,"c":0,"v":26}
  • {"r":3,"c":1,"v":5}
  • {"r":3,"c":2,"v":7}
  • {"r":3,"c":0,"v":9}