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): [_] → [35, 25] → [20, _, _] → [_, _, 4, 6] → [1, _, _, 1, _]

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Answer: Row5[2]=8, Row4[2]=11, Row3[3]=10, Row1[1]=60, Row4[1]=9, Row3[2]=15, Row5[5]=5, Row5[3]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [60]
  • [35,25]
  • [20,15,10]
  • [9,11,4,6]
  • [1,8,3,1,5]
Base
  • 1
  • 8
  • 3
  • 1
  • 5
TopValue
60
HiddenCells
  • {"r":4,"c":1,"v":8}
  • {"r":3,"c":1,"v":11}
  • {"r":2,"c":2,"v":10}
  • {"r":0,"c":0,"v":60}
  • {"r":3,"c":0,"v":9}
  • {"r":2,"c":1,"v":15}
  • {"r":4,"c":4,"v":5}
  • {"r":4,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [133] → [_, 74] → [25, 34, 40] → [_, _, _, _] → [7, _, _, _, 10]

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Answer: Row5[4]=10, Row5[2]=4, Row4[3]=20, Row2[1]=59, Row4[4]=20, Row4[2]=14, Row5[3]=10, Row4[1]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [133]
  • [59,74]
  • [25,34,40]
  • [11,14,20,20]
  • [7,4,10,10,10]
Base
  • 7
  • 4
  • 10
  • 10
  • 10
TopValue
133
HiddenCells
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":1,"v":4}
  • {"r":3,"c":2,"v":20}
  • {"r":1,"c":0,"v":59}
  • {"r":3,"c":3,"v":20}
  • {"r":3,"c":1,"v":14}
  • {"r":4,"c":2,"v":10}
  • {"r":3,"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): [90] → [35, _] → [_, _, _] → [7, 7, _, 20] → [4, _, 4, _, _]

Show answer

Answer: Row5[5]=10, Row3[1]=14, Row3[3]=34, Row3[2]=21, Row4[3]=14, Row2[2]=55, Row5[2]=3, Row5[4]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [90]
  • [35,55]
  • [14,21,34]
  • [7,7,14,20]
  • [4,3,4,10,10]
Base
  • 4
  • 3
  • 4
  • 10
  • 10
TopValue
90
HiddenCells
  • {"r":4,"c":4,"v":10}
  • {"r":2,"c":0,"v":14}
  • {"r":2,"c":2,"v":34}
  • {"r":2,"c":1,"v":21}
  • {"r":3,"c":2,"v":14}
  • {"r":1,"c":1,"v":55}
  • {"r":4,"c":1,"v":3}
  • {"r":4,"c":3,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [48, _] → [17, 31, _] → [4, 13, 18, _] → [1, _, _, _, _]

Show answer

Answer: Row5[5]=7, Row1[1]=112, Row5[2]=3, Row5[3]=10, Row2[2]=64, Row5[4]=8, Row4[4]=15, Row3[3]=33

SubType
number-pyramid
Difficulty
hard
Levels
  • [112]
  • [48,64]
  • [17,31,33]
  • [4,13,18,15]
  • [1,3,10,8,7]
Base
  • 1
  • 3
  • 10
  • 8
  • 7
TopValue
112
HiddenCells
  • {"r":4,"c":4,"v":7}
  • {"r":0,"c":0,"v":112}
  • {"r":4,"c":1,"v":3}
  • {"r":4,"c":2,"v":10}
  • {"r":1,"c":1,"v":64}
  • {"r":4,"c":3,"v":8}
  • {"r":3,"c":3,"v":15}
  • {"r":2,"c":2,"v":33}