medium Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [25, _] → [_, 12, _] → [4, 9, 3, 10]

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Answer: Row2[2]=25, Row3[1]=13, Row3[3]=13, Row1[1]=50

SubType
number-pyramid
Difficulty
medium
Levels
  • [50]
  • [25,25]
  • [13,12,13]
  • [4,9,3,10]
Base
  • 4
  • 9
  • 3
  • 10
TopValue
50
HiddenCells
  • {"r":1,"c":1,"v":25}
  • {"r":2,"c":0,"v":13}
  • {"r":2,"c":2,"v":13}
  • {"r":0,"c":0,"v":50}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [26, _] → [15, 11, _] → [6, 9, _, 1]

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Answer: Row4[3]=2, Row1[1]=40, Row2[2]=14, Row3[3]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [40]
  • [26,14]
  • [15,11,3]
  • [6,9,2,1]
Base
  • 6
  • 9
  • 2
  • 1
TopValue
40
HiddenCells
  • {"r":3,"c":2,"v":2}
  • {"r":0,"c":0,"v":40}
  • {"r":1,"c":1,"v":14}
  • {"r":2,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [22, 18] → [12, 10, _] → [5, _, 3, _]

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Answer: Row3[3]=8, Row4[2]=7, Row4[4]=5, Row1[1]=40

SubType
number-pyramid
Difficulty
medium
Levels
  • [40]
  • [22,18]
  • [12,10,8]
  • [5,7,3,5]
Base
  • 5
  • 7
  • 3
  • 5
TopValue
40
HiddenCells
  • {"r":2,"c":2,"v":8}
  • {"r":3,"c":1,"v":7}
  • {"r":3,"c":3,"v":5}
  • {"r":0,"c":0,"v":40}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 28] → [17, 13, 15] → [_, 8, 5, _]

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Answer: Row1[1]=58, Row4[1]=9, Row2[1]=30, Row4[4]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [58]
  • [30,28]
  • [17,13,15]
  • [9,8,5,10]
Base
  • 9
  • 8
  • 5
  • 10
TopValue
58
HiddenCells
  • {"r":0,"c":0,"v":58}
  • {"r":3,"c":0,"v":9}
  • {"r":1,"c":0,"v":30}
  • {"r":3,"c":3,"v":10}