hard Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [102] → [46, _] → [21, 25, 31] → [_, 11, 14, _] → [_, _, _, _, _]

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Answer: Row4[4]=17, Row5[4]=8, Row4[1]=10, Row5[5]=9, Row5[1]=5, Row2[2]=56, Row5[3]=6, Row5[2]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [102]
  • [46,56]
  • [21,25,31]
  • [10,11,14,17]
  • [5,5,6,8,9]
Base
  • 5
  • 5
  • 6
  • 8
  • 9
TopValue
102
HiddenCells
  • {"r":3,"c":3,"v":17}
  • {"r":4,"c":3,"v":8}
  • {"r":3,"c":0,"v":10}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":0,"v":5}
  • {"r":1,"c":1,"v":56}
  • {"r":4,"c":2,"v":6}
  • {"r":4,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [52, 62] → [23, _, 33] → [11, _, _, _] → [6, _, _, _, 6]

Show answer

Answer: Row5[2]=5, Row4[4]=16, Row4[3]=17, Row5[4]=10, Row5[3]=7, Row3[2]=29, Row1[1]=114, Row4[2]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [114]
  • [52,62]
  • [23,29,33]
  • [11,12,17,16]
  • [6,5,7,10,6]
Base
  • 6
  • 5
  • 7
  • 10
  • 6
TopValue
114
HiddenCells
  • {"r":4,"c":1,"v":5}
  • {"r":3,"c":3,"v":16}
  • {"r":3,"c":2,"v":17}
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":2,"v":7}
  • {"r":2,"c":1,"v":29}
  • {"r":0,"c":0,"v":114}
  • {"r":3,"c":1,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [24, _] → [_, 9, _] → [11, _, 5, 10] → [_, 1, _, 2, _]

Show answer

Answer: Row3[1]=15, Row4[2]=4, Row5[3]=3, Row5[5]=8, Row2[2]=24, Row5[1]=10, Row1[1]=48, Row3[3]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [48]
  • [24,24]
  • [15,9,15]
  • [11,4,5,10]
  • [10,1,3,2,8]
Base
  • 10
  • 1
  • 3
  • 2
  • 8
TopValue
48
HiddenCells
  • {"r":2,"c":0,"v":15}
  • {"r":3,"c":1,"v":4}
  • {"r":4,"c":2,"v":3}
  • {"r":4,"c":4,"v":8}
  • {"r":1,"c":1,"v":24}
  • {"r":4,"c":0,"v":10}
  • {"r":0,"c":0,"v":48}
  • {"r":2,"c":2,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [72] → [_, 34] → [_, _, _] → [13, 9, _, _] → [8, _, 4, _, 8]

Show answer

Answer: Row4[3]=7, Row5[2]=5, Row4[4]=11, Row2[1]=38, Row3[2]=16, Row3[1]=22, Row3[3]=18, Row5[4]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [72]
  • [38,34]
  • [22,16,18]
  • [13,9,7,11]
  • [8,5,4,3,8]
Base
  • 8
  • 5
  • 4
  • 3
  • 8
TopValue
72
HiddenCells
  • {"r":3,"c":2,"v":7}
  • {"r":4,"c":1,"v":5}
  • {"r":3,"c":3,"v":11}
  • {"r":1,"c":0,"v":38}
  • {"r":2,"c":1,"v":16}
  • {"r":2,"c":0,"v":22}
  • {"r":2,"c":2,"v":18}
  • {"r":4,"c":3,"v":3}