medium Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [34, 27] → [_, 17, 10] → [8, 9, _, _]

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Answer: Row4[3]=8, Row1[1]=61, Row3[1]=17, Row4[4]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [61]
  • [34,27]
  • [17,17,10]
  • [8,9,8,2]
Base
  • 8
  • 9
  • 8
  • 2
TopValue
61
HiddenCells
  • {"r":3,"c":2,"v":8}
  • {"r":0,"c":0,"v":61}
  • {"r":2,"c":0,"v":17}
  • {"r":3,"c":3,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [18, _] → [10, 8, _] → [9, 1, 7, _]

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Answer: Row2[2]=22, Row3[3]=14, Row1[1]=40, Row4[4]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [40]
  • [18,22]
  • [10,8,14]
  • [9,1,7,7]
Base
  • 9
  • 1
  • 7
  • 7
TopValue
40
HiddenCells
  • {"r":1,"c":1,"v":22}
  • {"r":2,"c":2,"v":14}
  • {"r":0,"c":0,"v":40}
  • {"r":3,"c":3,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 15] → [_, _, 5] → [4, 9, 1, 4]

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Answer: Row2[1]=23, Row1[1]=38, Row3[1]=13, Row3[2]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [38]
  • [23,15]
  • [13,10,5]
  • [4,9,1,4]
Base
  • 4
  • 9
  • 1
  • 4
TopValue
38
HiddenCells
  • {"r":1,"c":0,"v":23}
  • {"r":0,"c":0,"v":38}
  • {"r":2,"c":0,"v":13}
  • {"r":2,"c":1,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [35] → [23, 12] → [16, 7, _] → [_, _, _, 4]

Show answer

Answer: Row4[1]=10, Row4[2]=6, Row3[3]=5, Row4[3]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [35]
  • [23,12]
  • [16,7,5]
  • [10,6,1,4]
Base
  • 10
  • 6
  • 1
  • 4
TopValue
35
HiddenCells
  • {"r":3,"c":0,"v":10}
  • {"r":3,"c":1,"v":6}
  • {"r":2,"c":2,"v":5}
  • {"r":3,"c":2,"v":1}