medium Set 67 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [54] → [31, _] → [_, 14, _] → [9, 8, _, 3]

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Answer: Row2[2]=23, Row3[3]=9, Row4[3]=6, Row3[1]=17

SubType
number-pyramid
Difficulty
medium
Levels
  • [54]
  • [31,23]
  • [17,14,9]
  • [9,8,6,3]
Base
  • 9
  • 8
  • 6
  • 3
TopValue
54
HiddenCells
  • {"r":1,"c":1,"v":23}
  • {"r":2,"c":2,"v":9}
  • {"r":3,"c":2,"v":6}
  • {"r":2,"c":0,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [21, 19] → [12, _, _] → [10, _, 7, 3]

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Answer: Row3[3]=10, Row1[1]=40, Row4[2]=2, Row3[2]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [40]
  • [21,19]
  • [12,9,10]
  • [10,2,7,3]
Base
  • 10
  • 2
  • 7
  • 3
TopValue
40
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"r":0,"c":0,"v":40}
  • {"r":3,"c":1,"v":2}
  • {"r":2,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [10, 10] → [_, 4, 6] → [3, _, _, 5]

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Answer: Row4[3]=1, Row4[2]=3, Row3[1]=6, Row1[1]=20

SubType
number-pyramid
Difficulty
medium
Levels
  • [20]
  • [10,10]
  • [6,4,6]
  • [3,3,1,5]
Base
  • 3
  • 3
  • 1
  • 5
TopValue
20
HiddenCells
  • {"r":3,"c":2,"v":1}
  • {"r":3,"c":1,"v":3}
  • {"r":2,"c":0,"v":6}
  • {"r":0,"c":0,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [16, 23] → [6, _, _] → [3, 3, 7, _]

Show answer

Answer: Row4[4]=6, Row1[1]=39, Row3[2]=10, Row3[3]=13

SubType
number-pyramid
Difficulty
medium
Levels
  • [39]
  • [16,23]
  • [6,10,13]
  • [3,3,7,6]
Base
  • 3
  • 3
  • 7
  • 6
TopValue
39
HiddenCells
  • {"r":3,"c":3,"v":6}
  • {"r":0,"c":0,"v":39}
  • {"r":2,"c":1,"v":10}
  • {"r":2,"c":2,"v":13}