hard Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [21, _] → [_, 10, 22] → [8, 3, 7, _] → [_, _, 1, _, _]

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Answer: Row2[2]=32, Row4[4]=15, Row5[5]=9, Row5[1]=6, Row5[4]=6, Row3[1]=11, Row5[2]=2, Row1[1]=53

SubType
number-pyramid
Difficulty
hard
Levels
  • [53]
  • [21,32]
  • [11,10,22]
  • [8,3,7,15]
  • [6,2,1,6,9]
Base
  • 6
  • 2
  • 1
  • 6
  • 9
TopValue
53
HiddenCells
  • {"r":1,"c":1,"v":32}
  • {"r":3,"c":3,"v":15}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":0,"v":6}
  • {"r":4,"c":3,"v":6}
  • {"r":2,"c":0,"v":11}
  • {"r":4,"c":1,"v":2}
  • {"r":0,"c":0,"v":53}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [67, 66] → [33, _, _] → [16, 17, 17, _] → [_, _, _, _, 5]

Show answer

Answer: Row4[4]=15, Row5[2]=10, Row3[2]=34, Row5[3]=7, Row5[1]=6, Row5[4]=10, Row1[1]=133, Row3[3]=32

SubType
number-pyramid
Difficulty
hard
Levels
  • [133]
  • [67,66]
  • [33,34,32]
  • [16,17,17,15]
  • [6,10,7,10,5]
Base
  • 6
  • 10
  • 7
  • 10
  • 5
TopValue
133
HiddenCells
  • {"r":3,"c":3,"v":15}
  • {"r":4,"c":1,"v":10}
  • {"r":2,"c":1,"v":34}
  • {"r":4,"c":2,"v":7}
  • {"r":4,"c":0,"v":6}
  • {"r":4,"c":3,"v":10}
  • {"r":0,"c":0,"v":133}
  • {"r":2,"c":2,"v":32}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [82] → [39, _] → [19, _, 23] → [10, _, _, _] → [_, 8, _, _, 2]

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Answer: Row3[2]=20, Row2[2]=43, Row4[3]=11, Row5[1]=2, Row4[2]=9, Row5[4]=10, Row5[3]=1, Row4[4]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [82]
  • [39,43]
  • [19,20,23]
  • [10,9,11,12]
  • [2,8,1,10,2]
Base
  • 2
  • 8
  • 1
  • 10
  • 2
TopValue
82
HiddenCells
  • {"r":2,"c":1,"v":20}
  • {"r":1,"c":1,"v":43}
  • {"r":3,"c":2,"v":11}
  • {"r":4,"c":0,"v":2}
  • {"r":3,"c":1,"v":9}
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":2,"v":1}
  • {"r":3,"c":3,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [119] → [_, 61] → [_, _, _] → [14, _, 16, 15] → [_, _, _, 7, 8]

Show answer

Answer: Row4[2]=14, Row3[3]=31, Row2[1]=58, Row3[1]=28, Row3[2]=30, Row5[2]=5, Row5[3]=9, Row5[1]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [119]
  • [58,61]
  • [28,30,31]
  • [14,14,16,15]
  • [9,5,9,7,8]
Base
  • 9
  • 5
  • 9
  • 7
  • 8
TopValue
119
HiddenCells
  • {"r":3,"c":1,"v":14}
  • {"r":2,"c":2,"v":31}
  • {"r":1,"c":0,"v":58}
  • {"r":2,"c":0,"v":28}
  • {"r":2,"c":1,"v":30}
  • {"r":4,"c":1,"v":5}
  • {"r":4,"c":2,"v":9}
  • {"r":4,"c":0,"v":9}