hard Set 17 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [73, 73] → [_, 38, _] → [17, 18, _, _] → [_, _, _, 10, 5]

Show answer

Answer: Row5[1]=9, Row3[1]=35, Row5[2]=8, Row4[3]=20, Row4[4]=15, Row5[3]=10, Row3[3]=35, Row1[1]=146

SubType
number-pyramid
Difficulty
hard
Levels
  • [146]
  • [73,73]
  • [35,38,35]
  • [17,18,20,15]
  • [9,8,10,10,5]
Base
  • 9
  • 8
  • 10
  • 10
  • 5
TopValue
146
HiddenCells
  • {"r":4,"c":0,"v":9}
  • {"r":2,"c":0,"v":35}
  • {"r":4,"c":1,"v":8}
  • {"r":3,"c":2,"v":20}
  • {"r":3,"c":3,"v":15}
  • {"r":4,"c":2,"v":10}
  • {"r":2,"c":2,"v":35}
  • {"r":0,"c":0,"v":146}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [74] → [42, 32] → [_, _, 16] → [_, _, _, _] → [4, 10, 2, _, _]

Show answer

Answer: Row4[2]=12, Row4[3]=4, Row3[1]=26, Row5[5]=10, Row4[1]=14, Row5[4]=2, Row4[4]=12, Row3[2]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [74]
  • [42,32]
  • [26,16,16]
  • [14,12,4,12]
  • [4,10,2,2,10]
Base
  • 4
  • 10
  • 2
  • 2
  • 10
TopValue
74
HiddenCells
  • {"r":3,"c":1,"v":12}
  • {"r":3,"c":2,"v":4}
  • {"r":2,"c":0,"v":26}
  • {"r":4,"c":4,"v":10}
  • {"r":3,"c":0,"v":14}
  • {"r":4,"c":3,"v":2}
  • {"r":3,"c":3,"v":12}
  • {"r":2,"c":1,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, 20] → [_, _, _, 8] → [8, 7, 8, 4, 4]

Show answer

Answer: Row4[1]=15, Row4[2]=15, Row1[1]=104, Row3[2]=27, Row4[3]=12, Row2[2]=47, Row3[1]=30, Row2[1]=57

SubType
number-pyramid
Difficulty
hard
Levels
  • [104]
  • [57,47]
  • [30,27,20]
  • [15,15,12,8]
  • [8,7,8,4,4]
Base
  • 8
  • 7
  • 8
  • 4
  • 4
TopValue
104
HiddenCells
  • {"r":3,"c":0,"v":15}
  • {"r":3,"c":1,"v":15}
  • {"r":0,"c":0,"v":104}
  • {"r":2,"c":1,"v":27}
  • {"r":3,"c":2,"v":12}
  • {"r":1,"c":1,"v":47}
  • {"r":2,"c":0,"v":30}
  • {"r":1,"c":0,"v":57}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [62] → [_, 31] → [_, _, _] → [6, 9, _, _] → [_, _, 5, 2, 6]

Show answer

Answer: Row5[1]=2, Row2[1]=31, Row3[1]=15, Row3[2]=16, Row4[4]=8, Row3[3]=15, Row5[2]=4, Row4[3]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [62]
  • [31,31]
  • [15,16,15]
  • [6,9,7,8]
  • [2,4,5,2,6]
Base
  • 2
  • 4
  • 5
  • 2
  • 6
TopValue
62
HiddenCells
  • {"r":4,"c":0,"v":2}
  • {"r":1,"c":0,"v":31}
  • {"r":2,"c":0,"v":15}
  • {"r":2,"c":1,"v":16}
  • {"r":3,"c":3,"v":8}
  • {"r":2,"c":2,"v":15}
  • {"r":4,"c":1,"v":4}
  • {"r":3,"c":2,"v":7}