hard Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [74] → [40, 34] → [_, _, 17] → [12, 11, 6, _] → [_, _, _, _, _]

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Answer: Row5[2]=8, Row5[3]=3, Row5[5]=8, Row5[1]=4, Row4[4]=11, Row3[1]=23, Row3[2]=17, Row5[4]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [74]
  • [40,34]
  • [23,17,17]
  • [12,11,6,11]
  • [4,8,3,3,8]
Base
  • 4
  • 8
  • 3
  • 3
  • 8
TopValue
74
HiddenCells
  • {"r":4,"c":1,"v":8}
  • {"r":4,"c":2,"v":3}
  • {"r":4,"c":4,"v":8}
  • {"r":4,"c":0,"v":4}
  • {"r":3,"c":3,"v":11}
  • {"r":2,"c":0,"v":23}
  • {"r":2,"c":1,"v":17}
  • {"r":4,"c":3,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [127] → [_, 66] → [_, _, 32] → [_, 18, 16, _] → [_, 8, _, _, 10]

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Answer: Row4[4]=16, Row5[4]=6, Row3[2]=34, Row4[1]=9, Row2[1]=61, Row5[1]=1, Row5[3]=10, Row3[1]=27

SubType
number-pyramid
Difficulty
hard
Levels
  • [127]
  • [61,66]
  • [27,34,32]
  • [9,18,16,16]
  • [1,8,10,6,10]
Base
  • 1
  • 8
  • 10
  • 6
  • 10
TopValue
127
HiddenCells
  • {"r":3,"c":3,"v":16}
  • {"r":4,"c":3,"v":6}
  • {"r":2,"c":1,"v":34}
  • {"r":3,"c":0,"v":9}
  • {"r":1,"c":0,"v":61}
  • {"r":4,"c":0,"v":1}
  • {"r":4,"c":2,"v":10}
  • {"r":2,"c":0,"v":27}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [84] → [_, 33] → [31, _, _] → [_, _, 7, _] → [_, _, 3, 4, 2]

Show answer

Answer: Row4[4]=6, Row3[3]=13, Row4[2]=13, Row4[1]=18, Row5[1]=8, Row3[2]=20, Row2[1]=51, Row5[2]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [84]
  • [51,33]
  • [31,20,13]
  • [18,13,7,6]
  • [8,10,3,4,2]
Base
  • 8
  • 10
  • 3
  • 4
  • 2
TopValue
84
HiddenCells
  • {"r":3,"c":3,"v":6}
  • {"r":2,"c":2,"v":13}
  • {"r":3,"c":1,"v":13}
  • {"r":3,"c":0,"v":18}
  • {"r":4,"c":0,"v":8}
  • {"r":2,"c":1,"v":20}
  • {"r":1,"c":0,"v":51}
  • {"r":4,"c":1,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [30, _] → [_, 20, 34] → [_, _, 14, _] → [2, 2, _, 10, _]

Show answer

Answer: Row4[4]=20, Row5[5]=10, Row5[3]=4, Row3[1]=10, Row1[1]=84, Row4[1]=4, Row4[2]=6, Row2[2]=54

SubType
number-pyramid
Difficulty
hard
Levels
  • [84]
  • [30,54]
  • [10,20,34]
  • [4,6,14,20]
  • [2,2,4,10,10]
Base
  • 2
  • 2
  • 4
  • 10
  • 10
TopValue
84
HiddenCells
  • {"r":3,"c":3,"v":20}
  • {"r":4,"c":4,"v":10}
  • {"r":4,"c":2,"v":4}
  • {"r":2,"c":0,"v":10}
  • {"r":0,"c":0,"v":84}
  • {"r":3,"c":0,"v":4}
  • {"r":3,"c":1,"v":6}
  • {"r":1,"c":1,"v":54}