hard Set 16 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [81] → [_, _] → [_, _, 22] → [4, 9, _, _] → [_, 1, 8, _, 2]

Show answer

Answer: Row5[1]=3, Row4[4]=8, Row2[2]=45, Row5[4]=6, Row4[3]=14, Row3[1]=13, Row2[1]=36, Row3[2]=23

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [36,45]
  • [13,23,22]
  • [4,9,14,8]
  • [3,1,8,6,2]
Base
  • 3
  • 1
  • 8
  • 6
  • 2
TopValue
81
HiddenCells
  • {"r":4,"c":0,"v":3}
  • {"r":3,"c":3,"v":8}
  • {"r":1,"c":1,"v":45}
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":2,"v":14}
  • {"r":2,"c":0,"v":13}
  • {"r":1,"c":0,"v":36}
  • {"r":2,"c":1,"v":23}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [45, _] → [_, 24, 28] → [_, _, 13, 15] → [_, _, 7, 6, _]

Show answer

Answer: Row5[5]=9, Row5[2]=4, Row2[2]=52, Row4[1]=10, Row3[1]=21, Row1[1]=97, Row5[1]=6, Row4[2]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [97]
  • [45,52]
  • [21,24,28]
  • [10,11,13,15]
  • [6,4,7,6,9]
Base
  • 6
  • 4
  • 7
  • 6
  • 9
TopValue
97
HiddenCells
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":1,"v":4}
  • {"r":1,"c":1,"v":52}
  • {"r":3,"c":0,"v":10}
  • {"r":2,"c":0,"v":21}
  • {"r":0,"c":0,"v":97}
  • {"r":4,"c":0,"v":6}
  • {"r":3,"c":1,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [72, _] → [39, _, 22] → [20, _, _, _] → [10, _, _, 5, 3]

Show answer

Answer: Row4[4]=8, Row1[1]=127, Row3[2]=33, Row5[2]=10, Row5[3]=9, Row4[2]=19, Row4[3]=14, Row2[2]=55

SubType
number-pyramid
Difficulty
hard
Levels
  • [127]
  • [72,55]
  • [39,33,22]
  • [20,19,14,8]
  • [10,10,9,5,3]
Base
  • 10
  • 10
  • 9
  • 5
  • 3
TopValue
127
HiddenCells
  • {"r":3,"c":3,"v":8}
  • {"r":0,"c":0,"v":127}
  • {"r":2,"c":1,"v":33}
  • {"r":4,"c":1,"v":10}
  • {"r":4,"c":2,"v":9}
  • {"r":3,"c":1,"v":19}
  • {"r":3,"c":2,"v":14}
  • {"r":1,"c":1,"v":55}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [92] → [41, _] → [_, _, _] → [_, 9, _, _] → [5, 3, 6, _, 3]

Show answer

Answer: Row4[3]=15, Row4[1]=8, Row4[4]=12, Row3[2]=24, Row3[3]=27, Row3[1]=17, Row2[2]=51, Row5[4]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [92]
  • [41,51]
  • [17,24,27]
  • [8,9,15,12]
  • [5,3,6,9,3]
Base
  • 5
  • 3
  • 6
  • 9
  • 3
TopValue
92
HiddenCells
  • {"r":3,"c":2,"v":15}
  • {"r":3,"c":0,"v":8}
  • {"r":3,"c":3,"v":12}
  • {"r":2,"c":1,"v":24}
  • {"r":2,"c":2,"v":27}
  • {"r":2,"c":0,"v":17}
  • {"r":1,"c":1,"v":51}
  • {"r":4,"c":3,"v":9}