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): [129] → [_, _] → [_, 35, _] → [_, 18, 17, 10] → [_, 10, _, _, 1]

Show answer

Answer: Row2[1]=67, Row5[4]=9, Row3[1]=32, Row4[1]=14, Row5[1]=4, Row2[2]=62, Row3[3]=27, Row5[3]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [129]
  • [67,62]
  • [32,35,27]
  • [14,18,17,10]
  • [4,10,8,9,1]
Base
  • 4
  • 10
  • 8
  • 9
  • 1
TopValue
129
HiddenCells
  • {"r":1,"c":0,"v":67}
  • {"r":4,"c":3,"v":9}
  • {"r":2,"c":0,"v":32}
  • {"r":3,"c":0,"v":14}
  • {"r":4,"c":0,"v":4}
  • {"r":1,"c":1,"v":62}
  • {"r":2,"c":2,"v":27}
  • {"r":4,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [82] → [_, _] → [25, _, _] → [_, 10, 8, 13] → [_, _, _, 4, 9]

Show answer

Answer: Row2[2]=39, Row2[1]=43, Row5[1]=9, Row3[3]=21, Row5[3]=4, Row3[2]=18, Row4[1]=15, Row5[2]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [82]
  • [43,39]
  • [25,18,21]
  • [15,10,8,13]
  • [9,6,4,4,9]
Base
  • 9
  • 6
  • 4
  • 4
  • 9
TopValue
82
HiddenCells
  • {"r":1,"c":1,"v":39}
  • {"r":1,"c":0,"v":43}
  • {"r":4,"c":0,"v":9}
  • {"r":2,"c":2,"v":21}
  • {"r":4,"c":2,"v":4}
  • {"r":2,"c":1,"v":18}
  • {"r":3,"c":0,"v":15}
  • {"r":4,"c":1,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [14, 20, _] → [_, _, 12, _] → [2, 4, 4, 8, _]

Show answer

Answer: Row2[2]=45, Row5[5]=5, Row4[1]=6, Row1[1]=79, Row4[2]=8, Row4[4]=13, Row3[3]=25, Row2[1]=34

SubType
number-pyramid
Difficulty
hard
Levels
  • [79]
  • [34,45]
  • [14,20,25]
  • [6,8,12,13]
  • [2,4,4,8,5]
Base
  • 2
  • 4
  • 4
  • 8
  • 5
TopValue
79
HiddenCells
  • {"r":1,"c":1,"v":45}
  • {"r":4,"c":4,"v":5}
  • {"r":3,"c":0,"v":6}
  • {"r":0,"c":0,"v":79}
  • {"r":3,"c":1,"v":8}
  • {"r":3,"c":3,"v":13}
  • {"r":2,"c":2,"v":25}
  • {"r":1,"c":0,"v":34}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 6, 8] → [8, _, _, _] → [_, 3, 1, 1, 5]

Show answer

Answer: Row2[2]=14, Row3[1]=12, Row4[2]=4, Row4[4]=6, Row5[1]=5, Row4[3]=2, Row2[1]=18, Row1[1]=32

SubType
number-pyramid
Difficulty
hard
Levels
  • [32]
  • [18,14]
  • [12,6,8]
  • [8,4,2,6]
  • [5,3,1,1,5]
Base
  • 5
  • 3
  • 1
  • 1
  • 5
TopValue
32
HiddenCells
  • {"r":1,"c":1,"v":14}
  • {"r":2,"c":0,"v":12}
  • {"r":3,"c":1,"v":4}
  • {"r":3,"c":3,"v":6}
  • {"r":4,"c":0,"v":5}
  • {"r":3,"c":2,"v":2}
  • {"r":1,"c":0,"v":18}
  • {"r":0,"c":0,"v":32}