hard Set 21 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [45, _] → [19, _, 26] → [6, _, _, _] → [3, 3, _, _, 10]

Show answer

Answer: Row2[2]=52, Row3[2]=26, Row4[4]=13, Row4[2]=13, Row5[3]=10, Row5[4]=3, Row1[1]=97, Row4[3]=13

SubType
number-pyramid
Difficulty
hard
Levels
  • [97]
  • [45,52]
  • [19,26,26]
  • [6,13,13,13]
  • [3,3,10,3,10]
Base
  • 3
  • 3
  • 10
  • 3
  • 10
TopValue
97
HiddenCells
  • {"r":1,"c":1,"v":52}
  • {"r":2,"c":1,"v":26}
  • {"r":3,"c":3,"v":13}
  • {"r":3,"c":1,"v":13}
  • {"r":4,"c":2,"v":10}
  • {"r":4,"c":3,"v":3}
  • {"r":0,"c":0,"v":97}
  • {"r":3,"c":2,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [47] → [_, _] → [_, _, 18] → [_, _, 6, _] → [_, 2, 1, 5, 7]

Show answer

Answer: Row4[4]=12, Row2[2]=27, Row3[2]=9, Row2[1]=20, Row4[1]=8, Row5[1]=6, Row4[2]=3, Row3[1]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [47]
  • [20,27]
  • [11,9,18]
  • [8,3,6,12]
  • [6,2,1,5,7]
Base
  • 6
  • 2
  • 1
  • 5
  • 7
TopValue
47
HiddenCells
  • {"r":3,"c":3,"v":12}
  • {"r":1,"c":1,"v":27}
  • {"r":2,"c":1,"v":9}
  • {"r":1,"c":0,"v":20}
  • {"r":3,"c":0,"v":8}
  • {"r":4,"c":0,"v":6}
  • {"r":3,"c":1,"v":3}
  • {"r":2,"c":0,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [123] → [_, _] → [34, _, 33] → [_, _, _, 19] → [_, 10, 4, 10, _]

Show answer

Answer: Row2[2]=61, Row3[2]=28, Row4[1]=20, Row4[2]=14, Row5[5]=9, Row2[1]=62, Row4[3]=14, Row5[1]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [123]
  • [62,61]
  • [34,28,33]
  • [20,14,14,19]
  • [10,10,4,10,9]
Base
  • 10
  • 10
  • 4
  • 10
  • 9
TopValue
123
HiddenCells
  • {"r":1,"c":1,"v":61}
  • {"r":2,"c":1,"v":28}
  • {"r":3,"c":0,"v":20}
  • {"r":3,"c":1,"v":14}
  • {"r":4,"c":4,"v":9}
  • {"r":1,"c":0,"v":62}
  • {"r":3,"c":2,"v":14}
  • {"r":4,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [21, 30, 36] → [_, 12, _, _] → [_, 3, 9, 9, _]

Show answer

Answer: Row2[1]=51, Row4[1]=9, Row2[2]=66, Row4[3]=18, Row5[5]=9, Row4[4]=18, Row5[1]=6, Row1[1]=117

SubType
number-pyramid
Difficulty
hard
Levels
  • [117]
  • [51,66]
  • [21,30,36]
  • [9,12,18,18]
  • [6,3,9,9,9]
Base
  • 6
  • 3
  • 9
  • 9
  • 9
TopValue
117
HiddenCells
  • {"r":1,"c":0,"v":51}
  • {"r":3,"c":0,"v":9}
  • {"r":1,"c":1,"v":66}
  • {"r":3,"c":2,"v":18}
  • {"r":4,"c":4,"v":9}
  • {"r":3,"c":3,"v":18}
  • {"r":4,"c":0,"v":6}
  • {"r":0,"c":0,"v":117}