medium Set 75 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [31, _] → [18, 13, 5] → [_, _, 4, 1]

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Answer: Row4[2]=9, Row2[2]=18, Row1[1]=49, Row4[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [31,18]
  • [18,13,5]
  • [9,9,4,1]
Base
  • 9
  • 9
  • 4
  • 1
TopValue
49
HiddenCells
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":1,"v":18}
  • {"r":0,"c":0,"v":49}
  • {"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): [28] → [12, 16] → [4, 8, _] → [_, 2, _, _]

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Answer: Row4[3]=6, Row3[3]=8, Row4[1]=2, Row4[4]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [28]
  • [12,16]
  • [4,8,8]
  • [2,2,6,2]
Base
  • 2
  • 2
  • 6
  • 2
TopValue
28
HiddenCells
  • {"r":3,"c":2,"v":6}
  • {"r":2,"c":2,"v":8}
  • {"r":3,"c":0,"v":2}
  • {"r":3,"c":3,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [30] → [_, 17] → [8, 5, _] → [_, 3, _, 10]

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Answer: Row3[3]=12, Row4[3]=2, Row4[1]=5, Row2[1]=13

SubType
number-pyramid
Difficulty
medium
Levels
  • [30]
  • [13,17]
  • [8,5,12]
  • [5,3,2,10]
Base
  • 5
  • 3
  • 2
  • 10
TopValue
30
HiddenCells
  • {"r":2,"c":2,"v":12}
  • {"r":3,"c":2,"v":2}
  • {"r":3,"c":0,"v":5}
  • {"r":1,"c":0,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [35, 38] → [16, 19, 19] → [_, 9, _, _]

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Answer: Row4[3]=10, Row4[1]=7, Row4[4]=9, Row1[1]=73

SubType
number-pyramid
Difficulty
medium
Levels
  • [73]
  • [35,38]
  • [16,19,19]
  • [7,9,10,9]
Base
  • 7
  • 9
  • 10
  • 9
TopValue
73
HiddenCells
  • {"r":3,"c":2,"v":10}
  • {"r":3,"c":0,"v":7}
  • {"r":3,"c":3,"v":9}
  • {"r":0,"c":0,"v":73}