medium Set 12 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [21, _] → [8, 13, _] → [1, 7, 6, _]

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Answer: Row4[4]=9, Row3[3]=15, Row1[1]=49, Row2[2]=28

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [21,28]
  • [8,13,15]
  • [1,7,6,9]
Base
  • 1
  • 7
  • 6
  • 9
TopValue
49
HiddenCells
  • {"r":3,"c":3,"v":9}
  • {"r":2,"c":2,"v":15}
  • {"r":0,"c":0,"v":49}
  • {"r":1,"c":1,"v":28}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, _] → [4, _, _] → [1, 3, 5, 4]

Show answer

Answer: Row1[1]=29, Row3[2]=8, Row3[3]=9, Row2[2]=17

SubType
number-pyramid
Difficulty
medium
Levels
  • [29]
  • [12,17]
  • [4,8,9]
  • [1,3,5,4]
Base
  • 1
  • 3
  • 5
  • 4
TopValue
29
HiddenCells
  • {"r":0,"c":0,"v":29}
  • {"r":2,"c":1,"v":8}
  • {"r":2,"c":2,"v":9}
  • {"r":1,"c":1,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [21, _] → [11, _, 8] → [5, 6, _, 4]

Show answer

Answer: Row2[2]=18, Row4[3]=4, Row3[2]=10, Row1[1]=39

SubType
number-pyramid
Difficulty
medium
Levels
  • [39]
  • [21,18]
  • [11,10,8]
  • [5,6,4,4]
Base
  • 5
  • 6
  • 4
  • 4
TopValue
39
HiddenCells
  • {"r":1,"c":1,"v":18}
  • {"r":3,"c":2,"v":4}
  • {"r":2,"c":1,"v":10}
  • {"r":0,"c":0,"v":39}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [72] → [38, _] → [20, 18, _] → [10, _, 8, _]

Show answer

Answer: Row2[2]=34, Row4[2]=10, Row4[4]=8, Row3[3]=16

SubType
number-pyramid
Difficulty
medium
Levels
  • [72]
  • [38,34]
  • [20,18,16]
  • [10,10,8,8]
Base
  • 10
  • 10
  • 8
  • 8
TopValue
72
HiddenCells
  • {"r":1,"c":1,"v":34}
  • {"r":3,"c":1,"v":10}
  • {"r":3,"c":3,"v":8}
  • {"r":2,"c":2,"v":16}