medium Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [51] → [23, _] → [7, _, _] → [1, _, 10, 2]

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Answer: Row3[3]=12, Row4[2]=6, Row3[2]=16, Row2[2]=28

SubType
number-pyramid
Difficulty
medium
Levels
  • [51]
  • [23,28]
  • [7,16,12]
  • [1,6,10,2]
Base
  • 1
  • 6
  • 10
  • 2
TopValue
51
HiddenCells
  • {"r":2,"c":2,"v":12}
  • {"r":3,"c":1,"v":6}
  • {"r":2,"c":1,"v":16}
  • {"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): [41] → [_, 20] → [12, _, 11] → [7, _, _, 7]

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Answer: Row4[2]=5, Row2[1]=21, Row4[3]=4, Row3[2]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [41]
  • [21,20]
  • [12,9,11]
  • [7,5,4,7]
Base
  • 7
  • 5
  • 4
  • 7
TopValue
41
HiddenCells
  • {"r":3,"c":1,"v":5}
  • {"r":1,"c":0,"v":21}
  • {"r":3,"c":2,"v":4}
  • {"r":2,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [55] → [26, 29] → [_, 16, 13] → [4, _, _, _]

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Answer: Row4[4]=3, Row4[3]=10, Row3[1]=10, Row4[2]=6

SubType
number-pyramid
Difficulty
medium
Levels
  • [55]
  • [26,29]
  • [10,16,13]
  • [4,6,10,3]
Base
  • 4
  • 6
  • 10
  • 3
TopValue
55
HiddenCells
  • {"r":3,"c":3,"v":3}
  • {"r":3,"c":2,"v":10}
  • {"r":2,"c":0,"v":10}
  • {"r":3,"c":1,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [43] → [14, 29] → [_, 11, _] → [_, _, 10, 8]

Show answer

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

SubType
number-pyramid
Difficulty
medium
Levels
  • [43]
  • [14,29]
  • [3,11,18]
  • [2,1,10,8]
Base
  • 2
  • 1
  • 10
  • 8
TopValue
43
HiddenCells
  • {"r":3,"c":1,"v":1}
  • {"r":3,"c":0,"v":2}
  • {"r":2,"c":2,"v":18}
  • {"r":2,"c":0,"v":3}