hard Set 21 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 11, 20] → [10, 2, 9, _] → [_, _, 1, 8, _]

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Answer: Row5[2]=1, Row3[1]=12, Row2[1]=23, Row2[2]=31, Row1[1]=54, Row4[4]=11, Row5[1]=9, Row5[5]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [54]
  • [23,31]
  • [12,11,20]
  • [10,2,9,11]
  • [9,1,1,8,3]
Base
  • 9
  • 1
  • 1
  • 8
  • 3
TopValue
54
HiddenCells
  • {"r":4,"c":1,"v":1}
  • {"r":2,"c":0,"v":12}
  • {"r":1,"c":0,"v":23}
  • {"r":1,"c":1,"v":31}
  • {"r":0,"c":0,"v":54}
  • {"r":3,"c":3,"v":11}
  • {"r":4,"c":0,"v":9}
  • {"r":4,"c":4,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [43, 40] → [_, 22, _] → [_, 13, 9, _] → [_, 7, _, _, 6]

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Answer: Row3[3]=18, Row4[1]=8, Row5[3]=6, Row3[1]=21, Row5[1]=1, Row5[4]=3, Row4[4]=9, Row1[1]=83

SubType
number-pyramid
Difficulty
hard
Levels
  • [83]
  • [43,40]
  • [21,22,18]
  • [8,13,9,9]
  • [1,7,6,3,6]
Base
  • 1
  • 7
  • 6
  • 3
  • 6
TopValue
83
HiddenCells
  • {"r":2,"c":2,"v":18}
  • {"r":3,"c":0,"v":8}
  • {"r":4,"c":2,"v":6}
  • {"r":2,"c":0,"v":21}
  • {"r":4,"c":0,"v":1}
  • {"r":4,"c":3,"v":3}
  • {"r":3,"c":3,"v":9}
  • {"r":0,"c":0,"v":83}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [130] → [_, 60] → [38, 32, 28] → [_, 18, _, _] → [_, _, _, _, 8]

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Answer: Row4[1]=20, Row5[4]=6, Row5[2]=10, Row4[3]=14, Row5[3]=8, Row2[1]=70, Row5[1]=10, Row4[4]=14

SubType
number-pyramid
Difficulty
hard
Levels
  • [130]
  • [70,60]
  • [38,32,28]
  • [20,18,14,14]
  • [10,10,8,6,8]
Base
  • 10
  • 10
  • 8
  • 6
  • 8
TopValue
130
HiddenCells
  • {"r":3,"c":0,"v":20}
  • {"r":4,"c":3,"v":6}
  • {"r":4,"c":1,"v":10}
  • {"r":3,"c":2,"v":14}
  • {"r":4,"c":2,"v":8}
  • {"r":1,"c":0,"v":70}
  • {"r":4,"c":0,"v":10}
  • {"r":3,"c":3,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [46, _] → [20, 26, _] → [10, 10, _, 12] → [8, _, _, _, _]

Show answer

Answer: Row5[2]=2, Row4[3]=16, Row5[4]=8, Row3[3]=28, Row5[5]=4, Row5[3]=8, Row2[2]=54, Row1[1]=100

SubType
number-pyramid
Difficulty
hard
Levels
  • [100]
  • [46,54]
  • [20,26,28]
  • [10,10,16,12]
  • [8,2,8,8,4]
Base
  • 8
  • 2
  • 8
  • 8
  • 4
TopValue
100
HiddenCells
  • {"r":4,"c":1,"v":2}
  • {"r":3,"c":2,"v":16}
  • {"r":4,"c":3,"v":8}
  • {"r":2,"c":2,"v":28}
  • {"r":4,"c":4,"v":4}
  • {"r":4,"c":2,"v":8}
  • {"r":1,"c":1,"v":54}
  • {"r":0,"c":0,"v":100}