medium Set 17 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [49] → [30, _] → [19, 11, _] → [_, 10, _, 7]

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Answer: Row4[3]=1, Row2[2]=19, Row4[1]=9, Row3[3]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [30,19]
  • [19,11,8]
  • [9,10,1,7]
Base
  • 9
  • 10
  • 1
  • 7
TopValue
49
HiddenCells
  • {"r":3,"c":2,"v":1}
  • {"r":1,"c":1,"v":19}
  • {"r":3,"c":0,"v":9}
  • {"r":2,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [8, 11] → [4, 4, _] → [_, 1, 3, _]

Show answer

Answer: Row3[3]=7, Row1[1]=19, Row4[1]=3, Row4[4]=4

SubType
number-pyramid
Difficulty
medium
Levels
  • [19]
  • [8,11]
  • [4,4,7]
  • [3,1,3,4]
Base
  • 3
  • 1
  • 3
  • 4
TopValue
19
HiddenCells
  • {"r":2,"c":2,"v":7}
  • {"r":0,"c":0,"v":19}
  • {"r":3,"c":0,"v":3}
  • {"r":3,"c":3,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 18] → [7, 6, _] → [4, 3, _, 9]

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Answer: Row1[1]=31, Row3[3]=12, Row2[1]=13, Row4[3]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [31]
  • [13,18]
  • [7,6,12]
  • [4,3,3,9]
Base
  • 4
  • 3
  • 3
  • 9
TopValue
31
HiddenCells
  • {"r":0,"c":0,"v":31}
  • {"r":2,"c":2,"v":12}
  • {"r":1,"c":0,"v":13}
  • {"r":3,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [56] → [_, _] → [15, 16, 9] → [7, _, 8, _]

Show answer

Answer: Row2[1]=31, Row2[2]=25, Row4[2]=8, Row4[4]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [56]
  • [31,25]
  • [15,16,9]
  • [7,8,8,1]
Base
  • 7
  • 8
  • 8
  • 1
TopValue
56
HiddenCells
  • {"r":1,"c":0,"v":31}
  • {"r":1,"c":1,"v":25}
  • {"r":3,"c":1,"v":8}
  • {"r":3,"c":3,"v":1}