hard Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [74] → [_, _] → [_, 19, _] → [_, 12, _, 8] → [1, 8, 4, _, _]

Show answer

Answer: Row3[3]=15, Row2[2]=34, Row3[1]=21, Row4[3]=7, Row4[1]=9, Row5[5]=5, Row2[1]=40, Row5[4]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [74]
  • [40,34]
  • [21,19,15]
  • [9,12,7,8]
  • [1,8,4,3,5]
Base
  • 1
  • 8
  • 4
  • 3
  • 5
TopValue
74
HiddenCells
  • {"r":2,"c":2,"v":15}
  • {"r":1,"c":1,"v":34}
  • {"r":2,"c":0,"v":21}
  • {"r":3,"c":2,"v":7}
  • {"r":3,"c":0,"v":9}
  • {"r":4,"c":4,"v":5}
  • {"r":1,"c":0,"v":40}
  • {"r":4,"c":3,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [74] → [41, _] → [_, 21, 12] → [8, _, _, _] → [4, _, 8, _, _]

Show answer

Answer: Row4[2]=12, Row5[5]=2, Row3[1]=20, Row5[4]=1, Row5[2]=4, Row4[4]=3, Row4[3]=9, Row2[2]=33

SubType
number-pyramid
Difficulty
hard
Levels
  • [74]
  • [41,33]
  • [20,21,12]
  • [8,12,9,3]
  • [4,4,8,1,2]
Base
  • 4
  • 4
  • 8
  • 1
  • 2
TopValue
74
HiddenCells
  • {"r":3,"c":1,"v":12}
  • {"r":4,"c":4,"v":2}
  • {"r":2,"c":0,"v":20}
  • {"r":4,"c":3,"v":1}
  • {"r":4,"c":1,"v":4}
  • {"r":3,"c":3,"v":3}
  • {"r":3,"c":2,"v":9}
  • {"r":1,"c":1,"v":33}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [107] → [_, _] → [24, _, _] → [_, _, 14, 15] → [3, 8, _, 9, _]

Show answer

Answer: Row3[2]=27, Row4[2]=13, Row3[3]=29, Row4[1]=11, Row5[5]=6, Row2[2]=56, Row2[1]=51, Row5[3]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [107]
  • [51,56]
  • [24,27,29]
  • [11,13,14,15]
  • [3,8,5,9,6]
Base
  • 3
  • 8
  • 5
  • 9
  • 6
TopValue
107
HiddenCells
  • {"r":2,"c":1,"v":27}
  • {"r":3,"c":1,"v":13}
  • {"r":2,"c":2,"v":29}
  • {"r":3,"c":0,"v":11}
  • {"r":4,"c":4,"v":6}
  • {"r":1,"c":1,"v":56}
  • {"r":1,"c":0,"v":51}
  • {"r":4,"c":2,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 34, 19] → [_, 20, 14, 5] → [5, _, _, 4, _]

Show answer

Answer: Row3[1]=35, Row4[1]=15, Row2[2]=53, Row2[1]=69, Row5[5]=1, Row5[3]=10, Row5[2]=10, Row1[1]=122

SubType
number-pyramid
Difficulty
hard
Levels
  • [122]
  • [69,53]
  • [35,34,19]
  • [15,20,14,5]
  • [5,10,10,4,1]
Base
  • 5
  • 10
  • 10
  • 4
  • 1
TopValue
122
HiddenCells
  • {"r":2,"c":0,"v":35}
  • {"r":3,"c":0,"v":15}
  • {"r":1,"c":1,"v":53}
  • {"r":1,"c":0,"v":69}
  • {"r":4,"c":4,"v":1}
  • {"r":4,"c":2,"v":10}
  • {"r":4,"c":1,"v":10}
  • {"r":0,"c":0,"v":122}