medium Set 47 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] → [4, 8, 1, 7]

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Answer: Row2[2]=17, Row1[1]=38, Row3[2]=9, Row3[1]=12

SubType
number-pyramid
Difficulty
medium
Levels
  • [38]
  • [21,17]
  • [12,9,8]
  • [4,8,1,7]
Base
  • 4
  • 8
  • 1
  • 7
TopValue
38
HiddenCells
  • {"r":1,"c":1,"v":17}
  • {"r":0,"c":0,"v":38}
  • {"r":2,"c":1,"v":9}
  • {"r":2,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [15, _] → [_, 6, _] → [8, _, 5, 2]

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Answer: Row3[1]=9, Row4[2]=1, Row2[2]=13, Row3[3]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [28]
  • [15,13]
  • [9,6,7]
  • [8,1,5,2]
Base
  • 8
  • 1
  • 5
  • 2
TopValue
28
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":3,"c":1,"v":1}
  • {"r":1,"c":1,"v":13}
  • {"r":2,"c":2,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [17, 21] → [_, _, 12] → [6, 2, 7, _]

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Answer: Row4[4]=5, Row3[2]=9, Row3[1]=8, Row1[1]=38

SubType
number-pyramid
Difficulty
medium
Levels
  • [38]
  • [17,21]
  • [8,9,12]
  • [6,2,7,5]
Base
  • 6
  • 2
  • 7
  • 5
TopValue
38
HiddenCells
  • {"r":3,"c":3,"v":5}
  • {"r":2,"c":1,"v":9}
  • {"r":2,"c":0,"v":8}
  • {"r":0,"c":0,"v":38}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [22, 16] → [_, 9, 7] → [_, 7, _, 5]

Show answer

Answer: Row4[1]=6, Row4[3]=2, Row1[1]=38, Row3[1]=13

SubType
number-pyramid
Difficulty
medium
Levels
  • [38]
  • [22,16]
  • [13,9,7]
  • [6,7,2,5]
Base
  • 6
  • 7
  • 2
  • 5
TopValue
38
HiddenCells
  • {"r":3,"c":0,"v":6}
  • {"r":3,"c":2,"v":2}
  • {"r":0,"c":0,"v":38}
  • {"r":2,"c":0,"v":13}