hard Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [125] → [64, _] → [_, 31, _] → [17, _, 15, 15] → [_, _, 6, _, _]

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Answer: Row5[2]=10, Row3[1]=33, Row4[2]=16, Row5[1]=7, Row3[3]=30, Row2[2]=61, Row5[5]=6, Row5[4]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [125]
  • [64,61]
  • [33,31,30]
  • [17,16,15,15]
  • [7,10,6,9,6]
Base
  • 7
  • 10
  • 6
  • 9
  • 6
TopValue
125
HiddenCells
  • {"r":4,"c":1,"v":10}
  • {"r":2,"c":0,"v":33}
  • {"r":3,"c":1,"v":16}
  • {"r":4,"c":0,"v":7}
  • {"r":2,"c":2,"v":30}
  • {"r":1,"c":1,"v":61}
  • {"r":4,"c":4,"v":6}
  • {"r":4,"c":3,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [93] → [43, 50] → [_, _, _] → [14, _, _, 19] → [7, _, _, _, 10]

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Answer: Row3[1]=23, Row4[2]=9, Row3[3]=30, Row4[3]=11, Row5[4]=9, Row3[2]=20, Row5[2]=7, Row5[3]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [93]
  • [43,50]
  • [23,20,30]
  • [14,9,11,19]
  • [7,7,2,9,10]
Base
  • 7
  • 7
  • 2
  • 9
  • 10
TopValue
93
HiddenCells
  • {"r":2,"c":0,"v":23}
  • {"r":3,"c":1,"v":9}
  • {"r":2,"c":2,"v":30}
  • {"r":3,"c":2,"v":11}
  • {"r":4,"c":3,"v":9}
  • {"r":2,"c":1,"v":20}
  • {"r":4,"c":1,"v":7}
  • {"r":4,"c":2,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [116] → [_, _] → [37, _, _] → [_, _, 11, 8] → [8, _, 9, 2, _]

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Answer: Row2[2]=49, Row4[2]=19, Row3[3]=19, Row2[1]=67, Row5[5]=6, Row3[2]=30, Row5[2]=10, Row4[1]=18

SubType
number-pyramid
Difficulty
hard
Levels
  • [116]
  • [67,49]
  • [37,30,19]
  • [18,19,11,8]
  • [8,10,9,2,6]
Base
  • 8
  • 10
  • 9
  • 2
  • 6
TopValue
116
HiddenCells
  • {"r":1,"c":1,"v":49}
  • {"r":3,"c":1,"v":19}
  • {"r":2,"c":2,"v":19}
  • {"r":1,"c":0,"v":67}
  • {"r":4,"c":4,"v":6}
  • {"r":2,"c":1,"v":30}
  • {"r":4,"c":1,"v":10}
  • {"r":3,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [133] → [73, _] → [37, _, _] → [_, 20, _, _] → [7, _, 10, _, 2]

Show answer

Answer: Row4[3]=16, Row5[2]=10, Row3[3]=24, Row3[2]=36, Row2[2]=60, Row5[4]=6, Row4[1]=17, Row4[4]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [133]
  • [73,60]
  • [37,36,24]
  • [17,20,16,8]
  • [7,10,10,6,2]
Base
  • 7
  • 10
  • 10
  • 6
  • 2
TopValue
133
HiddenCells
  • {"r":3,"c":2,"v":16}
  • {"r":4,"c":1,"v":10}
  • {"r":2,"c":2,"v":24}
  • {"r":2,"c":1,"v":36}
  • {"r":1,"c":1,"v":60}
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":0,"v":17}
  • {"r":3,"c":3,"v":8}