medium Set 83 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [45] → [28, _] → [_, 10, 7] → [_, 8, 2, _]

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Answer: Row4[1]=10, Row4[4]=5, Row2[2]=17, Row3[1]=18

SubType
number-pyramid
Difficulty
medium
Levels
  • [45]
  • [28,17]
  • [18,10,7]
  • [10,8,2,5]
Base
  • 10
  • 8
  • 2
  • 5
TopValue
45
HiddenCells
  • {"r":3,"c":0,"v":10}
  • {"r":3,"c":3,"v":5}
  • {"r":1,"c":1,"v":17}
  • {"r":2,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [_, _] → [8, _, 2] → [5, 3, 1, _]

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Answer: Row2[1]=12, Row4[4]=1, Row3[2]=4, Row2[2]=6

SubType
number-pyramid
Difficulty
medium
Levels
  • [18]
  • [12,6]
  • [8,4,2]
  • [5,3,1,1]
Base
  • 5
  • 3
  • 1
  • 1
TopValue
18
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"r":3,"c":3,"v":1}
  • {"r":2,"c":1,"v":4}
  • {"r":1,"c":1,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [_, 12] → [3, _, _] → [_, 1, 5, 1]

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Answer: Row3[3]=6, Row4[1]=2, Row3[2]=6, Row2[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [21]
  • [9,12]
  • [3,6,6]
  • [2,1,5,1]
Base
  • 2
  • 1
  • 5
  • 1
TopValue
21
HiddenCells
  • {"r":2,"c":2,"v":6}
  • {"r":3,"c":0,"v":2}
  • {"r":2,"c":1,"v":6}
  • {"r":1,"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): [66] → [_, 31] → [18, 17, 14] → [_, _, _, 7]

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Answer: Row4[1]=8, Row2[1]=35, Row4[2]=10, Row4[3]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [66]
  • [35,31]
  • [18,17,14]
  • [8,10,7,7]
Base
  • 8
  • 10
  • 7
  • 7
TopValue
66
HiddenCells
  • {"r":3,"c":0,"v":8}
  • {"r":1,"c":0,"v":35}
  • {"r":3,"c":1,"v":10}
  • {"r":3,"c":2,"v":7}