hard Set 83 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [57, _] → [_, _, 29] → [_, 13, 18, 11] → [8, _, _, _, 1]

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Answer: Row4[1]=13, Row2[2]=60, Row3[1]=26, Row3[2]=31, Row5[4]=10, Row1[1]=117, Row5[3]=8, Row5[2]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [117]
  • [57,60]
  • [26,31,29]
  • [13,13,18,11]
  • [8,5,8,10,1]
Base
  • 8
  • 5
  • 8
  • 10
  • 1
TopValue
117
HiddenCells
  • {"r":3,"c":0,"v":13}
  • {"r":1,"c":1,"v":60}
  • {"r":2,"c":0,"v":26}
  • {"r":2,"c":1,"v":31}
  • {"r":4,"c":3,"v":10}
  • {"r":0,"c":0,"v":117}
  • {"r":4,"c":2,"v":8}
  • {"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): [66] → [41, _] → [23, _, _] → [10, _, 5, _] → [1, _, _, _, 1]

Show answer

Answer: Row3[2]=18, Row2[2]=25, Row5[3]=4, Row5[2]=9, Row5[4]=1, Row3[3]=7, Row4[2]=13, Row4[4]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [66]
  • [41,25]
  • [23,18,7]
  • [10,13,5,2]
  • [1,9,4,1,1]
Base
  • 1
  • 9
  • 4
  • 1
  • 1
TopValue
66
HiddenCells
  • {"r":2,"c":1,"v":18}
  • {"r":1,"c":1,"v":25}
  • {"r":4,"c":2,"v":4}
  • {"r":4,"c":1,"v":9}
  • {"r":4,"c":3,"v":1}
  • {"r":2,"c":2,"v":7}
  • {"r":3,"c":1,"v":13}
  • {"r":3,"c":3,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 41] → [_, _, 16] → [_, _, 11, 5] → [_, 7, 7, 4, _]

Show answer

Answer: Row4[2]=14, Row5[5]=1, Row4[1]=11, Row3[1]=25, Row3[2]=25, Row5[1]=4, Row2[1]=50, Row1[1]=91

SubType
number-pyramid
Difficulty
hard
Levels
  • [91]
  • [50,41]
  • [25,25,16]
  • [11,14,11,5]
  • [4,7,7,4,1]
Base
  • 4
  • 7
  • 7
  • 4
  • 1
TopValue
91
HiddenCells
  • {"r":3,"c":1,"v":14}
  • {"r":4,"c":4,"v":1}
  • {"r":3,"c":0,"v":11}
  • {"r":2,"c":0,"v":25}
  • {"r":2,"c":1,"v":25}
  • {"r":4,"c":0,"v":4}
  • {"r":1,"c":0,"v":50}
  • {"r":0,"c":0,"v":91}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [95] → [50, _] → [_, 24, 21] → [_, 12, _, _] → [7, 7, _, _, _]

Show answer

Answer: Row3[1]=26, Row4[1]=14, Row5[5]=2, Row4[4]=9, Row2[2]=45, Row5[3]=5, Row5[4]=7, Row4[3]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [95]
  • [50,45]
  • [26,24,21]
  • [14,12,12,9]
  • [7,7,5,7,2]
Base
  • 7
  • 7
  • 5
  • 7
  • 2
TopValue
95
HiddenCells
  • {"r":2,"c":0,"v":26}
  • {"r":3,"c":0,"v":14}
  • {"r":4,"c":4,"v":2}
  • {"r":3,"c":3,"v":9}
  • {"r":1,"c":1,"v":45}
  • {"r":4,"c":2,"v":5}
  • {"r":4,"c":3,"v":7}
  • {"r":3,"c":2,"v":12}