medium Set 18 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [9, _] → [6, _, 7] → [4, _, 1, _]

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Answer: Row2[2]=10, Row4[2]=2, Row4[4]=6, Row3[2]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [19]
  • [9,10]
  • [6,3,7]
  • [4,2,1,6]
Base
  • 4
  • 2
  • 1
  • 6
TopValue
19
HiddenCells
  • {"r":1,"c":1,"v":10}
  • {"r":3,"c":1,"v":2}
  • {"r":3,"c":3,"v":6}
  • {"r":2,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 21] → [9, 13, _] → [1, 8, 5, _]

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Answer: Row4[4]=3, Row3[3]=8, Row1[1]=43, Row2[1]=22

SubType
number-pyramid
Difficulty
medium
Levels
  • [43]
  • [22,21]
  • [9,13,8]
  • [1,8,5,3]
Base
  • 1
  • 8
  • 5
  • 3
TopValue
43
HiddenCells
  • {"r":3,"c":3,"v":3}
  • {"r":2,"c":2,"v":8}
  • {"r":0,"c":0,"v":43}
  • {"r":1,"c":0,"v":22}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [49] → [20, 29] → [_, _, 17] → [_, _, 9, 8]

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Answer: Row4[2]=3, Row3[2]=12, Row3[1]=8, Row4[1]=5

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [20,29]
  • [8,12,17]
  • [5,3,9,8]
Base
  • 5
  • 3
  • 9
  • 8
TopValue
49
HiddenCells
  • {"r":3,"c":1,"v":3}
  • {"r":2,"c":1,"v":12}
  • {"r":2,"c":0,"v":8}
  • {"r":3,"c":0,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [45] → [_, _] → [17, _, 6] → [7, 10, _, 5]

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Answer: Row2[2]=17, Row3[2]=11, Row2[1]=28, Row4[3]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [45]
  • [28,17]
  • [17,11,6]
  • [7,10,1,5]
Base
  • 7
  • 10
  • 1
  • 5
TopValue
45
HiddenCells
  • {"r":1,"c":1,"v":17}
  • {"r":2,"c":1,"v":11}
  • {"r":1,"c":0,"v":28}
  • {"r":3,"c":2,"v":1}