hard Set 100 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [77] → [_, _] → [_, 20, _] → [_, 11, _, _] → [_, 4, 7, 2, 3]

Show answer

Answer: Row2[2]=34, Row4[4]=5, Row4[3]=9, Row5[1]=8, Row3[3]=14, Row4[1]=12, Row2[1]=43, Row3[1]=23

SubType
number-pyramid
Difficulty
hard
Levels
  • [77]
  • [43,34]
  • [23,20,14]
  • [12,11,9,5]
  • [8,4,7,2,3]
Base
  • 8
  • 4
  • 7
  • 2
  • 3
TopValue
77
HiddenCells
  • {"r":1,"c":1,"v":34}
  • {"r":3,"c":3,"v":5}
  • {"r":3,"c":2,"v":9}
  • {"r":4,"c":0,"v":8}
  • {"r":2,"c":2,"v":14}
  • {"r":3,"c":0,"v":12}
  • {"r":1,"c":0,"v":43}
  • {"r":2,"c":0,"v":23}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [111] → [_, _] → [_, 27, 23] → [18, _, 11, 12] → [_, _, _, _, 9]

Show answer

Answer: Row2[2]=50, Row5[2]=8, Row2[1]=61, Row5[4]=3, Row5[3]=8, Row3[1]=34, Row5[1]=10, Row4[2]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [111]
  • [61,50]
  • [34,27,23]
  • [18,16,11,12]
  • [10,8,8,3,9]
Base
  • 10
  • 8
  • 8
  • 3
  • 9
TopValue
111
HiddenCells
  • {"r":1,"c":1,"v":50}
  • {"r":4,"c":1,"v":8}
  • {"r":1,"c":0,"v":61}
  • {"r":4,"c":3,"v":3}
  • {"r":4,"c":2,"v":8}
  • {"r":2,"c":0,"v":34}
  • {"r":4,"c":0,"v":10}
  • {"r":3,"c":1,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [80] → [_, 36] → [_, _, _] → [_, 12, _, 10] → [5, _, 4, _, 7]

Show answer

Answer: Row5[2]=8, Row2[1]=44, Row3[3]=17, Row4[1]=13, Row3[2]=19, Row3[1]=25, Row5[4]=3, Row4[3]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [80]
  • [44,36]
  • [25,19,17]
  • [13,12,7,10]
  • [5,8,4,3,7]
Base
  • 5
  • 8
  • 4
  • 3
  • 7
TopValue
80
HiddenCells
  • {"r":4,"c":1,"v":8}
  • {"r":1,"c":0,"v":44}
  • {"r":2,"c":2,"v":17}
  • {"r":3,"c":0,"v":13}
  • {"r":2,"c":1,"v":19}
  • {"r":2,"c":0,"v":25}
  • {"r":4,"c":3,"v":3}
  • {"r":3,"c":2,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [65, 67] → [29, 36, _] → [_, _, 18, _] → [_, 10, _, _, 3]

Show answer

Answer: Row4[2]=18, Row1[1]=132, Row5[4]=10, Row5[1]=1, Row5[3]=8, Row3[3]=31, Row4[4]=13, Row4[1]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [132]
  • [65,67]
  • [29,36,31]
  • [11,18,18,13]
  • [1,10,8,10,3]
Base
  • 1
  • 10
  • 8
  • 10
  • 3
TopValue
132
HiddenCells
  • {"r":3,"c":1,"v":18}
  • {"r":0,"c":0,"v":132}
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":0,"v":1}
  • {"r":4,"c":2,"v":8}
  • {"r":2,"c":2,"v":31}
  • {"r":3,"c":3,"v":13}
  • {"r":3,"c":0,"v":11}