hard Set 52 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [130] → [_, _] → [_, 35, 21] → [19, _, _, _] → [9, 10, _, 5, _]

Show answer

Answer: Row2[1]=74, Row4[4]=6, Row2[2]=56, Row3[1]=39, Row5[3]=10, Row4[3]=15, Row5[5]=1, Row4[2]=20

SubType
number-pyramid
Difficulty
hard
Levels
  • [130]
  • [74,56]
  • [39,35,21]
  • [19,20,15,6]
  • [9,10,10,5,1]
Base
  • 9
  • 10
  • 10
  • 5
  • 1
TopValue
130
HiddenCells
  • {"r":1,"c":0,"v":74}
  • {"r":3,"c":3,"v":6}
  • {"r":1,"c":1,"v":56}
  • {"r":2,"c":0,"v":39}
  • {"r":4,"c":2,"v":10}
  • {"r":3,"c":2,"v":15}
  • {"r":4,"c":4,"v":1}
  • {"r":3,"c":1,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [116] → [63, 53] → [_, 31, _] → [_, _, _, 8] → [_, _, _, 6, 2]

Show answer

Answer: Row5[1]=6, Row4[2]=17, Row5[3]=8, Row3[1]=32, Row3[3]=22, Row4[3]=14, Row5[2]=9, Row4[1]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [116]
  • [63,53]
  • [32,31,22]
  • [15,17,14,8]
  • [6,9,8,6,2]
Base
  • 6
  • 9
  • 8
  • 6
  • 2
TopValue
116
HiddenCells
  • {"r":4,"c":0,"v":6}
  • {"r":3,"c":1,"v":17}
  • {"r":4,"c":2,"v":8}
  • {"r":2,"c":0,"v":32}
  • {"r":2,"c":2,"v":22}
  • {"r":3,"c":2,"v":14}
  • {"r":4,"c":1,"v":9}
  • {"r":3,"c":0,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [20, _] → [11, 9, _] → [_, _, 6, 12] → [_, 1, _, 4, _]

Show answer

Answer: Row4[1]=8, Row5[1]=7, Row5[5]=8, Row5[3]=2, Row3[3]=18, Row4[2]=3, Row1[1]=47, Row2[2]=27

SubType
number-pyramid
Difficulty
hard
Levels
  • [47]
  • [20,27]
  • [11,9,18]
  • [8,3,6,12]
  • [7,1,2,4,8]
Base
  • 7
  • 1
  • 2
  • 4
  • 8
TopValue
47
HiddenCells
  • {"r":3,"c":0,"v":8}
  • {"r":4,"c":0,"v":7}
  • {"r":4,"c":4,"v":8}
  • {"r":4,"c":2,"v":2}
  • {"r":2,"c":2,"v":18}
  • {"r":3,"c":1,"v":3}
  • {"r":0,"c":0,"v":47}
  • {"r":1,"c":1,"v":27}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [42, _] → [17, 25, _] → [8, _, _, 17] → [7, _, _, _, 9]

Show answer

Answer: Row5[4]=8, Row5[2]=1, Row4[3]=16, Row4[2]=9, Row3[3]=33, Row5[3]=8, Row2[2]=58, Row1[1]=100

SubType
number-pyramid
Difficulty
hard
Levels
  • [100]
  • [42,58]
  • [17,25,33]
  • [8,9,16,17]
  • [7,1,8,8,9]
Base
  • 7
  • 1
  • 8
  • 8
  • 9
TopValue
100
HiddenCells
  • {"r":4,"c":3,"v":8}
  • {"r":4,"c":1,"v":1}
  • {"r":3,"c":2,"v":16}
  • {"r":3,"c":1,"v":9}
  • {"r":2,"c":2,"v":33}
  • {"r":4,"c":2,"v":8}
  • {"r":1,"c":1,"v":58}
  • {"r":0,"c":0,"v":100}