medium Set 51 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, _] → [6, _, 7] → [_, 5, 1, 6]

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Answer: Row2[2]=13, Row1[1]=25, Row3[2]=6, Row4[1]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [25]
  • [12,13]
  • [6,6,7]
  • [1,5,1,6]
Base
  • 1
  • 5
  • 1
  • 6
TopValue
25
HiddenCells
  • {"r":1,"c":1,"v":13}
  • {"r":0,"c":0,"v":25}
  • {"r":2,"c":1,"v":6}
  • {"r":3,"c":0,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [61] → [33, _] → [15, _, _] → [_, 9, 9, 1]

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Answer: Row2[2]=28, Row3[2]=18, Row3[3]=10, Row4[1]=6

SubType
number-pyramid
Difficulty
medium
Levels
  • [61]
  • [33,28]
  • [15,18,10]
  • [6,9,9,1]
Base
  • 6
  • 9
  • 9
  • 1
TopValue
61
HiddenCells
  • {"r":1,"c":1,"v":28}
  • {"r":2,"c":1,"v":18}
  • {"r":2,"c":2,"v":10}
  • {"r":3,"c":0,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [30, 24] → [_, _, _] → [9, 7, 7, 3]

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Answer: Row3[3]=10, Row1[1]=54, Row3[2]=14, Row3[1]=16

SubType
number-pyramid
Difficulty
medium
Levels
  • [54]
  • [30,24]
  • [16,14,10]
  • [9,7,7,3]
Base
  • 9
  • 7
  • 7
  • 3
TopValue
54
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"r":0,"c":0,"v":54}
  • {"r":2,"c":1,"v":14}
  • {"r":2,"c":0,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [25, _] → [14, 11, _] → [_, 5, 6, 3]

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Answer: Row4[1]=9, Row2[2]=20, Row1[1]=45, Row3[3]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [45]
  • [25,20]
  • [14,11,9]
  • [9,5,6,3]
Base
  • 9
  • 5
  • 6
  • 3
TopValue
45
HiddenCells
  • {"r":3,"c":0,"v":9}
  • {"r":1,"c":1,"v":20}
  • {"r":0,"c":0,"v":45}
  • {"r":2,"c":2,"v":9}