hard Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [92] → [48, _] → [25, _, _] → [11, 14, 9, _] → [_, _, _, 4, _]

Show answer

Answer: Row3[2]=23, Row2[2]=44, Row3[3]=21, Row5[5]=8, Row5[1]=2, Row5[3]=5, Row4[4]=12, Row5[2]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [92]
  • [48,44]
  • [25,23,21]
  • [11,14,9,12]
  • [2,9,5,4,8]
Base
  • 2
  • 9
  • 5
  • 4
  • 8
TopValue
92
HiddenCells
  • {"r":2,"c":1,"v":23}
  • {"r":1,"c":1,"v":44}
  • {"r":2,"c":2,"v":21}
  • {"r":4,"c":4,"v":8}
  • {"r":4,"c":0,"v":2}
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":3,"v":12}
  • {"r":4,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [107] → [55, _] → [_, 29, _] → [10, _, 13, _] → [3, _, 9, _, _]

Show answer

Answer: Row5[5]=6, Row3[1]=26, Row2[2]=52, Row4[2]=16, Row5[2]=7, Row5[4]=4, Row3[3]=23, Row4[4]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [107]
  • [55,52]
  • [26,29,23]
  • [10,16,13,10]
  • [3,7,9,4,6]
Base
  • 3
  • 7
  • 9
  • 4
  • 6
TopValue
107
HiddenCells
  • {"r":4,"c":4,"v":6}
  • {"r":2,"c":0,"v":26}
  • {"r":1,"c":1,"v":52}
  • {"r":3,"c":1,"v":16}
  • {"r":4,"c":1,"v":7}
  • {"r":4,"c":3,"v":4}
  • {"r":2,"c":2,"v":23}
  • {"r":3,"c":3,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [31, _] → [_, _, 14] → [5, 8, _, _] → [4, _, 7, _, 1]

Show answer

Answer: Row4[3]=10, Row1[1]=63, Row3[1]=13, Row2[2]=32, Row5[2]=1, Row4[4]=4, Row5[4]=3, Row3[2]=18

SubType
number-pyramid
Difficulty
hard
Levels
  • [63]
  • [31,32]
  • [13,18,14]
  • [5,8,10,4]
  • [4,1,7,3,1]
Base
  • 4
  • 1
  • 7
  • 3
  • 1
TopValue
63
HiddenCells
  • {"r":3,"c":2,"v":10}
  • {"r":0,"c":0,"v":63}
  • {"r":2,"c":0,"v":13}
  • {"r":1,"c":1,"v":32}
  • {"r":4,"c":1,"v":1}
  • {"r":3,"c":3,"v":4}
  • {"r":4,"c":3,"v":3}
  • {"r":2,"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): [_] → [30, 29] → [_, _, _] → [_, 7, 8, 6] → [_, 1, _, 2, _]

Show answer

Answer: Row3[2]=15, Row4[1]=8, Row5[1]=7, Row3[3]=14, Row1[1]=59, Row3[1]=15, Row5[5]=4, Row5[3]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [59]
  • [30,29]
  • [15,15,14]
  • [8,7,8,6]
  • [7,1,6,2,4]
Base
  • 7
  • 1
  • 6
  • 2
  • 4
TopValue
59
HiddenCells
  • {"r":2,"c":1,"v":15}
  • {"r":3,"c":0,"v":8}
  • {"r":4,"c":0,"v":7}
  • {"r":2,"c":2,"v":14}
  • {"r":0,"c":0,"v":59}
  • {"r":2,"c":0,"v":15}
  • {"r":4,"c":4,"v":4}
  • {"r":4,"c":2,"v":6}