hard Set 80 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [136] → [69, _] → [33, 36, _] → [_, _, 18, _] → [_, _, _, 10, 3]

Show answer

Answer: Row4[1]=15, Row3[3]=31, Row2[2]=67, Row5[3]=8, Row5[1]=5, Row4[4]=13, Row5[2]=10, Row4[2]=18

SubType
number-pyramid
Difficulty
hard
Levels
  • [136]
  • [69,67]
  • [33,36,31]
  • [15,18,18,13]
  • [5,10,8,10,3]
Base
  • 5
  • 10
  • 8
  • 10
  • 3
TopValue
136
HiddenCells
  • {"r":3,"c":0,"v":15}
  • {"r":2,"c":2,"v":31}
  • {"r":1,"c":1,"v":67}
  • {"r":4,"c":2,"v":8}
  • {"r":4,"c":0,"v":5}
  • {"r":3,"c":3,"v":13}
  • {"r":4,"c":1,"v":10}
  • {"r":3,"c":1,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [25, 31, 33] → [12, _, _, _] → [_, 4, 9, 9, _]

Show answer

Answer: Row1[1]=120, Row2[1]=56, Row2[2]=64, Row4[4]=15, Row4[2]=13, Row5[1]=8, Row4[3]=18, Row5[5]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [120]
  • [56,64]
  • [25,31,33]
  • [12,13,18,15]
  • [8,4,9,9,6]
Base
  • 8
  • 4
  • 9
  • 9
  • 6
TopValue
120
HiddenCells
  • {"r":0,"c":0,"v":120}
  • {"r":1,"c":0,"v":56}
  • {"r":1,"c":1,"v":64}
  • {"r":3,"c":3,"v":15}
  • {"r":3,"c":1,"v":13}
  • {"r":4,"c":0,"v":8}
  • {"r":3,"c":2,"v":18}
  • {"r":4,"c":4,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 40] → [18, _, _] → [_, 11, 10, _] → [5, 2, _, 1, _]

Show answer

Answer: Row2[1]=39, Row5[3]=9, Row5[5]=8, Row3[3]=19, Row1[1]=79, Row4[1]=7, Row4[4]=9, Row3[2]=21

SubType
number-pyramid
Difficulty
hard
Levels
  • [79]
  • [39,40]
  • [18,21,19]
  • [7,11,10,9]
  • [5,2,9,1,8]
Base
  • 5
  • 2
  • 9
  • 1
  • 8
TopValue
79
HiddenCells
  • {"r":1,"c":0,"v":39}
  • {"r":4,"c":2,"v":9}
  • {"r":4,"c":4,"v":8}
  • {"r":2,"c":2,"v":19}
  • {"r":0,"c":0,"v":79}
  • {"r":3,"c":0,"v":7}
  • {"r":3,"c":3,"v":9}
  • {"r":2,"c":1,"v":21}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [62] → [_, _] → [15, _, 13] → [_, 10, _, 6] → [_, _, 6, _, 5]

Show answer

Answer: Row5[1]=1, Row2[1]=32, Row5[4]=1, Row5[2]=4, Row3[2]=17, Row4[1]=5, Row2[2]=30, Row4[3]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [62]
  • [32,30]
  • [15,17,13]
  • [5,10,7,6]
  • [1,4,6,1,5]
Base
  • 1
  • 4
  • 6
  • 1
  • 5
TopValue
62
HiddenCells
  • {"r":4,"c":0,"v":1}
  • {"r":1,"c":0,"v":32}
  • {"r":4,"c":3,"v":1}
  • {"r":4,"c":1,"v":4}
  • {"r":2,"c":1,"v":17}
  • {"r":3,"c":0,"v":5}
  • {"r":1,"c":1,"v":30}
  • {"r":3,"c":2,"v":7}