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): [_] → [53, _] → [32, _, 16] → [18, 14, _, _] → [9, _, _, _, 7]

Show answer

Answer: Row3[2]=21, Row2[2]=37, Row5[2]=9, Row4[4]=9, Row5[4]=2, Row4[3]=7, Row5[3]=5, Row1[1]=90

SubType
number-pyramid
Difficulty
hard
Levels
  • [90]
  • [53,37]
  • [32,21,16]
  • [18,14,7,9]
  • [9,9,5,2,7]
Base
  • 9
  • 9
  • 5
  • 2
  • 7
TopValue
90
HiddenCells
  • {"r":2,"c":1,"v":21}
  • {"r":1,"c":1,"v":37}
  • {"r":4,"c":1,"v":9}
  • {"r":3,"c":3,"v":9}
  • {"r":4,"c":3,"v":2}
  • {"r":3,"c":2,"v":7}
  • {"r":4,"c":2,"v":5}
  • {"r":0,"c":0,"v":90}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [103] → [_, 54] → [23, _, 28] → [_, 12, 14, _] → [_, 4, _, _, _]

Show answer

Answer: Row2[1]=49, Row5[4]=6, Row3[2]=26, Row4[4]=14, Row5[5]=8, Row4[1]=11, Row5[3]=8, Row5[1]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [103]
  • [49,54]
  • [23,26,28]
  • [11,12,14,14]
  • [7,4,8,6,8]
Base
  • 7
  • 4
  • 8
  • 6
  • 8
TopValue
103
HiddenCells
  • {"r":1,"c":0,"v":49}
  • {"r":4,"c":3,"v":6}
  • {"r":2,"c":1,"v":26}
  • {"r":3,"c":3,"v":14}
  • {"r":4,"c":4,"v":8}
  • {"r":3,"c":0,"v":11}
  • {"r":4,"c":2,"v":8}
  • {"r":4,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 16] → [_, 7, 9] → [8, _, 3, _] → [6, _, 2, _, _]

Show answer

Answer: Row5[4]=1, Row4[2]=4, Row4[4]=6, Row5[2]=2, Row2[1]=19, Row1[1]=35, Row5[5]=5, Row3[1]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [35]
  • [19,16]
  • [12,7,9]
  • [8,4,3,6]
  • [6,2,2,1,5]
Base
  • 6
  • 2
  • 2
  • 1
  • 5
TopValue
35
HiddenCells
  • {"r":4,"c":3,"v":1}
  • {"r":3,"c":1,"v":4}
  • {"r":3,"c":3,"v":6}
  • {"r":4,"c":1,"v":2}
  • {"r":1,"c":0,"v":19}
  • {"r":0,"c":0,"v":35}
  • {"r":4,"c":4,"v":5}
  • {"r":2,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [113] → [_, 58] → [_, _, _] → [_, _, _, 16] → [_, 6, 6, 9, 7]

Show answer

Answer: Row3[3]=31, Row4[3]=15, Row4[2]=12, Row5[1]=10, Row3[2]=27, Row4[1]=16, Row3[1]=28, Row2[1]=55

SubType
number-pyramid
Difficulty
hard
Levels
  • [113]
  • [55,58]
  • [28,27,31]
  • [16,12,15,16]
  • [10,6,6,9,7]
Base
  • 10
  • 6
  • 6
  • 9
  • 7
TopValue
113
HiddenCells
  • {"r":2,"c":2,"v":31}
  • {"r":3,"c":2,"v":15}
  • {"r":3,"c":1,"v":12}
  • {"r":4,"c":0,"v":10}
  • {"r":2,"c":1,"v":27}
  • {"r":3,"c":0,"v":16}
  • {"r":2,"c":0,"v":28}
  • {"r":1,"c":0,"v":55}