hard Set 20 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [42, 35] → [_, 19, _] → [12, 11, _, 8] → [_, _, _, _, 3]

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Answer: Row5[1]=4, Row3[1]=23, Row5[2]=8, Row4[3]=8, Row3[3]=16, Row5[4]=5, Row5[3]=3, Row1[1]=77

SubType
number-pyramid
Difficulty
hard
Levels
  • [77]
  • [42,35]
  • [23,19,16]
  • [12,11,8,8]
  • [4,8,3,5,3]
Base
  • 4
  • 8
  • 3
  • 5
  • 3
TopValue
77
HiddenCells
  • {"r":4,"c":0,"v":4}
  • {"r":2,"c":0,"v":23}
  • {"r":4,"c":1,"v":8}
  • {"r":3,"c":2,"v":8}
  • {"r":2,"c":2,"v":16}
  • {"r":4,"c":3,"v":5}
  • {"r":4,"c":2,"v":3}
  • {"r":0,"c":0,"v":77}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [96] → [_, 52] → [_, 24, _] → [_, _, 13, _] → [2, 7, 4, _, _]

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Answer: Row4[2]=11, Row4[4]=15, Row5[5]=6, Row3[3]=28, Row3[1]=20, Row4[1]=9, Row5[4]=9, Row2[1]=44

SubType
number-pyramid
Difficulty
hard
Levels
  • [96]
  • [44,52]
  • [20,24,28]
  • [9,11,13,15]
  • [2,7,4,9,6]
Base
  • 2
  • 7
  • 4
  • 9
  • 6
TopValue
96
HiddenCells
  • {"r":3,"c":1,"v":11}
  • {"r":3,"c":3,"v":15}
  • {"r":4,"c":4,"v":6}
  • {"r":2,"c":2,"v":28}
  • {"r":2,"c":0,"v":20}
  • {"r":3,"c":0,"v":9}
  • {"r":4,"c":3,"v":9}
  • {"r":1,"c":0,"v":44}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 13] → [_, 6, 7] → [_, 3, _, 4] → [8, 2, _, _, _]

Show answer

Answer: Row3[1]=13, Row5[4]=2, Row5[5]=2, Row2[1]=19, Row5[3]=1, Row1[1]=32, Row4[3]=3, Row4[1]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [32]
  • [19,13]
  • [13,6,7]
  • [10,3,3,4]
  • [8,2,1,2,2]
Base
  • 8
  • 2
  • 1
  • 2
  • 2
TopValue
32
HiddenCells
  • {"r":2,"c":0,"v":13}
  • {"r":4,"c":3,"v":2}
  • {"r":4,"c":4,"v":2}
  • {"r":1,"c":0,"v":19}
  • {"r":4,"c":2,"v":1}
  • {"r":0,"c":0,"v":32}
  • {"r":3,"c":2,"v":3}
  • {"r":3,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [61] → [_, 26] → [_, 13, _] → [_, _, 3, 10] → [_, _, 1, 2, _]

Show answer

Answer: Row4[2]=10, Row3[1]=22, Row5[5]=8, Row5[2]=9, Row4[1]=12, Row3[3]=13, Row5[1]=3, Row2[1]=35

SubType
number-pyramid
Difficulty
hard
Levels
  • [61]
  • [35,26]
  • [22,13,13]
  • [12,10,3,10]
  • [3,9,1,2,8]
Base
  • 3
  • 9
  • 1
  • 2
  • 8
TopValue
61
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":2,"c":0,"v":22}
  • {"r":4,"c":4,"v":8}
  • {"r":4,"c":1,"v":9}
  • {"r":3,"c":0,"v":12}
  • {"r":2,"c":2,"v":13}
  • {"r":4,"c":0,"v":3}
  • {"r":1,"c":0,"v":35}