hard Set 15 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [50, _] → [_, _, _] → [_, _, 15, _] → [5, 4, 9, 6, 10]

Show answer

Answer: Row3[2]=28, Row4[1]=9, Row1[1]=109, Row4[2]=13, Row3[3]=31, Row3[1]=22, Row2[2]=59, Row4[4]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [109]
  • [50,59]
  • [22,28,31]
  • [9,13,15,16]
  • [5,4,9,6,10]
Base
  • 5
  • 4
  • 9
  • 6
  • 10
TopValue
109
HiddenCells
  • {"r":2,"c":1,"v":28}
  • {"r":3,"c":0,"v":9}
  • {"r":0,"c":0,"v":109}
  • {"r":3,"c":1,"v":13}
  • {"r":2,"c":2,"v":31}
  • {"r":2,"c":0,"v":22}
  • {"r":1,"c":1,"v":59}
  • {"r":3,"c":3,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [109] → [58, _] → [_, _, _] → [_, 15, 13, 10] → [9, _, _, 4, _]

Show answer

Answer: Row3[2]=28, Row3[3]=23, Row2[2]=51, Row5[5]=6, Row5[2]=6, Row5[3]=9, Row3[1]=30, Row4[1]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [109]
  • [58,51]
  • [30,28,23]
  • [15,15,13,10]
  • [9,6,9,4,6]
Base
  • 9
  • 6
  • 9
  • 4
  • 6
TopValue
109
HiddenCells
  • {"r":2,"c":1,"v":28}
  • {"r":2,"c":2,"v":23}
  • {"r":1,"c":1,"v":51}
  • {"r":4,"c":4,"v":6}
  • {"r":4,"c":1,"v":6}
  • {"r":4,"c":2,"v":9}
  • {"r":2,"c":0,"v":30}
  • {"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): [_] → [40, _] → [_, _, 26] → [_, 10, _, _] → [_, 2, 8, 7, 4]

Show answer

Answer: Row2[2]=51, Row3[1]=15, Row4[3]=15, Row4[4]=11, Row3[2]=25, Row1[1]=91, Row5[1]=3, Row4[1]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [91]
  • [40,51]
  • [15,25,26]
  • [5,10,15,11]
  • [3,2,8,7,4]
Base
  • 3
  • 2
  • 8
  • 7
  • 4
TopValue
91
HiddenCells
  • {"r":1,"c":1,"v":51}
  • {"r":2,"c":0,"v":15}
  • {"r":3,"c":2,"v":15}
  • {"r":3,"c":3,"v":11}
  • {"r":2,"c":1,"v":25}
  • {"r":0,"c":0,"v":91}
  • {"r":4,"c":0,"v":3}
  • {"r":3,"c":0,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, 18] → [_, 16, _, _] → [7, 9, 7, 1, 9]

Show answer

Answer: Row4[1]=16, Row2[1]=56, Row4[3]=8, Row4[4]=10, Row3[2]=24, Row1[1]=98, Row2[2]=42, Row3[1]=32

SubType
number-pyramid
Difficulty
hard
Levels
  • [98]
  • [56,42]
  • [32,24,18]
  • [16,16,8,10]
  • [7,9,7,1,9]
Base
  • 7
  • 9
  • 7
  • 1
  • 9
TopValue
98
HiddenCells
  • {"r":3,"c":0,"v":16}
  • {"r":1,"c":0,"v":56}
  • {"r":3,"c":2,"v":8}
  • {"r":3,"c":3,"v":10}
  • {"r":2,"c":1,"v":24}
  • {"r":0,"c":0,"v":98}
  • {"r":1,"c":1,"v":42}
  • {"r":2,"c":0,"v":32}