hard Set 61 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [21, _] → [9, 12, _] → [5, 4, _, _] → [2, _, _, 7, _]

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Answer: Row5[2]=3, Row4[4]=17, Row5[5]=10, Row4[3]=8, Row3[3]=25, Row1[1]=58, Row2[2]=37, Row5[3]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [58]
  • [21,37]
  • [9,12,25]
  • [5,4,8,17]
  • [2,3,1,7,10]
Base
  • 2
  • 3
  • 1
  • 7
  • 10
TopValue
58
HiddenCells
  • {"r":4,"c":1,"v":3}
  • {"r":3,"c":3,"v":17}
  • {"r":4,"c":4,"v":10}
  • {"r":3,"c":2,"v":8}
  • {"r":2,"c":2,"v":25}
  • {"r":0,"c":0,"v":58}
  • {"r":1,"c":1,"v":37}
  • {"r":4,"c":2,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [111] → [_, 49] → [33, _, _] → [_, _, 11, 9] → [_, 8, 10, _, _]

Show answer

Answer: Row5[5]=8, Row3[2]=29, Row2[1]=62, Row4[1]=15, Row5[1]=7, Row4[2]=18, Row5[4]=1, Row3[3]=20

SubType
number-pyramid
Difficulty
hard
Levels
  • [111]
  • [62,49]
  • [33,29,20]
  • [15,18,11,9]
  • [7,8,10,1,8]
Base
  • 7
  • 8
  • 10
  • 1
  • 8
TopValue
111
HiddenCells
  • {"r":4,"c":4,"v":8}
  • {"r":2,"c":1,"v":29}
  • {"r":1,"c":0,"v":62}
  • {"r":3,"c":0,"v":15}
  • {"r":4,"c":0,"v":7}
  • {"r":3,"c":1,"v":18}
  • {"r":4,"c":3,"v":1}
  • {"r":2,"c":2,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 19, 30] → [12, 8, 11, 19] → [5, _, _, _, _]

Show answer

Answer: Row5[4]=10, Row2[1]=39, Row5[2]=7, Row1[1]=88, Row5[3]=1, Row3[1]=20, Row5[5]=9, Row2[2]=49

SubType
number-pyramid
Difficulty
hard
Levels
  • [88]
  • [39,49]
  • [20,19,30]
  • [12,8,11,19]
  • [5,7,1,10,9]
Base
  • 5
  • 7
  • 1
  • 10
  • 9
TopValue
88
HiddenCells
  • {"r":4,"c":3,"v":10}
  • {"r":1,"c":0,"v":39}
  • {"r":4,"c":1,"v":7}
  • {"r":0,"c":0,"v":88}
  • {"r":4,"c":2,"v":1}
  • {"r":2,"c":0,"v":20}
  • {"r":4,"c":4,"v":9}
  • {"r":1,"c":1,"v":49}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [46, 31] → [_, _, _] → [_, 12, _, 11] → [8, 10, 2, _, _]

Show answer

Answer: Row4[1]=18, Row4[3]=4, Row5[5]=9, Row1[1]=77, Row3[3]=15, Row5[4]=2, Row3[1]=30, Row3[2]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [77]
  • [46,31]
  • [30,16,15]
  • [18,12,4,11]
  • [8,10,2,2,9]
Base
  • 8
  • 10
  • 2
  • 2
  • 9
TopValue
77
HiddenCells
  • {"r":3,"c":0,"v":18}
  • {"r":3,"c":2,"v":4}
  • {"r":4,"c":4,"v":9}
  • {"r":0,"c":0,"v":77}
  • {"r":2,"c":2,"v":15}
  • {"r":4,"c":3,"v":2}
  • {"r":2,"c":0,"v":30}
  • {"r":2,"c":1,"v":16}