hard Set 26 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [109] → [56, _] → [28, _, 25] → [_, _, _, 12] → [4, _, _, 7, _]

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Answer: Row5[5]=5, Row4[2]=15, Row4[3]=13, Row3[2]=28, Row5[3]=6, Row4[1]=13, Row2[2]=53, Row5[2]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [109]
  • [56,53]
  • [28,28,25]
  • [13,15,13,12]
  • [4,9,6,7,5]
Base
  • 4
  • 9
  • 6
  • 7
  • 5
TopValue
109
HiddenCells
  • {"r":4,"c":4,"v":5}
  • {"r":3,"c":1,"v":15}
  • {"r":3,"c":2,"v":13}
  • {"r":2,"c":1,"v":28}
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":0,"v":13}
  • {"r":1,"c":1,"v":53}
  • {"r":4,"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): [75] → [_, 39] → [_, 16, _] → [_, 8, 8, 15] → [_, _, _, _, 10]

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Answer: Row5[3]=3, Row4[1]=12, Row3[3]=23, Row5[2]=5, Row5[4]=5, Row2[1]=36, Row5[1]=7, Row3[1]=20

SubType
number-pyramid
Difficulty
hard
Levels
  • [75]
  • [36,39]
  • [20,16,23]
  • [12,8,8,15]
  • [7,5,3,5,10]
Base
  • 7
  • 5
  • 3
  • 5
  • 10
TopValue
75
HiddenCells
  • {"r":4,"c":2,"v":3}
  • {"r":3,"c":0,"v":12}
  • {"r":2,"c":2,"v":23}
  • {"r":4,"c":1,"v":5}
  • {"r":4,"c":3,"v":5}
  • {"r":1,"c":0,"v":36}
  • {"r":4,"c":0,"v":7}
  • {"r":2,"c":0,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [91] → [_, 46] → [24, 21, _] → [14, _, _, _] → [9, _, _, _, 8]

Show answer

Answer: Row5[3]=5, Row4[2]=10, Row5[2]=5, Row5[4]=6, Row2[1]=45, Row4[4]=14, Row3[3]=25, Row4[3]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [91]
  • [45,46]
  • [24,21,25]
  • [14,10,11,14]
  • [9,5,5,6,8]
Base
  • 9
  • 5
  • 5
  • 6
  • 8
TopValue
91
HiddenCells
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":1,"v":10}
  • {"r":4,"c":1,"v":5}
  • {"r":4,"c":3,"v":6}
  • {"r":1,"c":0,"v":45}
  • {"r":3,"c":3,"v":14}
  • {"r":2,"c":2,"v":25}
  • {"r":3,"c":2,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [59, _] → [31, _, _] → [_, 18, 10, 10] → [4, _, _, 1, _]

Show answer

Answer: Row1[1]=107, Row3[2]=28, Row5[5]=9, Row5[3]=9, Row3[3]=20, Row5[2]=9, Row2[2]=48, Row4[1]=13

SubType
number-pyramid
Difficulty
hard
Levels
  • [107]
  • [59,48]
  • [31,28,20]
  • [13,18,10,10]
  • [4,9,9,1,9]
Base
  • 4
  • 9
  • 9
  • 1
  • 9
TopValue
107
HiddenCells
  • {"r":0,"c":0,"v":107}
  • {"r":2,"c":1,"v":28}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":2,"v":9}
  • {"r":2,"c":2,"v":20}
  • {"r":4,"c":1,"v":9}
  • {"r":1,"c":1,"v":48}
  • {"r":3,"c":0,"v":13}