medium Set 87 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [51] → [30, _] → [_, 13, 8] → [10, _, 6, _]

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Answer: Row4[4]=2, Row3[1]=17, Row2[2]=21, Row4[2]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [51]
  • [30,21]
  • [17,13,8]
  • [10,7,6,2]
Base
  • 10
  • 7
  • 6
  • 2
TopValue
51
HiddenCells
  • {"r":3,"c":3,"v":2}
  • {"r":2,"c":0,"v":17}
  • {"r":1,"c":1,"v":21}
  • {"r":3,"c":1,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [10, 8] → [_, _, 4] → [4, 2, _, _]

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Answer: Row3[2]=4, Row4[3]=2, Row4[4]=2, Row3[1]=6

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [29] → [18, _] → [_, 5, 6] → [9, _, 1, _]

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Answer: Row4[4]=5, Row3[1]=13, Row2[2]=11, Row4[2]=4

SubType
number-pyramid
Difficulty
medium
Levels
  • [29]
  • [18,11]
  • [13,5,6]
  • [9,4,1,5]
Base
  • 9
  • 4
  • 1
  • 5
TopValue
29
HiddenCells
  • {"r":3,"c":3,"v":5}
  • {"r":2,"c":0,"v":13}
  • {"r":1,"c":1,"v":11}
  • {"r":3,"c":1,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [43] → [25, _] → [15, _, 8] → [_, 8, _, 6]

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Answer: Row4[1]=7, Row4[3]=2, Row3[2]=10, Row2[2]=18

SubType
number-pyramid
Difficulty
medium
Levels
  • [43]
  • [25,18]
  • [15,10,8]
  • [7,8,2,6]
Base
  • 7
  • 8
  • 2
  • 6
TopValue
43
HiddenCells
  • {"r":3,"c":0,"v":7}
  • {"r":3,"c":2,"v":2}
  • {"r":2,"c":1,"v":10}
  • {"r":1,"c":1,"v":18}