hard Set 80 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [61] → [34, _] → [23, _, _] → [16, 7, 4, _] → [10, _, _, _, _]

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Answer: Row5[2]=6, Row5[5]=9, Row5[3]=1, Row3[2]=11, Row5[4]=3, Row2[2]=27, Row4[4]=12, Row3[3]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [61]
  • [34,27]
  • [23,11,16]
  • [16,7,4,12]
  • [10,6,1,3,9]
Base
  • 10
  • 6
  • 1
  • 3
  • 9
TopValue
61
HiddenCells
  • {"r":4,"c":1,"v":6}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":2,"v":1}
  • {"r":2,"c":1,"v":11}
  • {"r":4,"c":3,"v":3}
  • {"r":1,"c":1,"v":27}
  • {"r":3,"c":3,"v":12}
  • {"r":2,"c":2,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [70] → [_, 36] → [_, _, 19] → [7, 10, 7, _] → [_, _, 4, _, _]

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Answer: Row4[4]=12, Row3[2]=17, Row3[1]=17, Row5[2]=6, Row5[5]=9, Row5[1]=1, Row5[4]=3, Row2[1]=34

SubType
number-pyramid
Difficulty
hard
Levels
  • [70]
  • [34,36]
  • [17,17,19]
  • [7,10,7,12]
  • [1,6,4,3,9]
Base
  • 1
  • 6
  • 4
  • 3
  • 9
TopValue
70
HiddenCells
  • {"r":3,"c":3,"v":12}
  • {"r":2,"c":1,"v":17}
  • {"r":2,"c":0,"v":17}
  • {"r":4,"c":1,"v":6}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":0,"v":1}
  • {"r":4,"c":3,"v":3}
  • {"r":1,"c":0,"v":34}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [77] → [_, _] → [_, _, 14] → [_, 11, _, 5] → [7, _, _, 3, 2]

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Answer: Row2[2]=34, Row2[1]=43, Row5[2]=5, Row3[2]=20, Row4[1]=12, Row3[1]=23, Row5[3]=6, Row4[3]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [77]
  • [43,34]
  • [23,20,14]
  • [12,11,9,5]
  • [7,5,6,3,2]
Base
  • 7
  • 5
  • 6
  • 3
  • 2
TopValue
77
HiddenCells
  • {"r":1,"c":1,"v":34}
  • {"r":1,"c":0,"v":43}
  • {"r":4,"c":1,"v":5}
  • {"r":2,"c":1,"v":20}
  • {"r":3,"c":0,"v":12}
  • {"r":2,"c":0,"v":23}
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":2,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [46, _] → [_, _, _] → [15, 10, _, _] → [7, 8, _, 9, 8]

Show answer

Answer: Row2[2]=49, Row3[1]=25, Row4[3]=11, Row1[1]=95, Row3[2]=21, Row3[3]=28, Row4[4]=17, Row5[3]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [95]
  • [46,49]
  • [25,21,28]
  • [15,10,11,17]
  • [7,8,2,9,8]
Base
  • 7
  • 8
  • 2
  • 9
  • 8
TopValue
95
HiddenCells
  • {"r":1,"c":1,"v":49}
  • {"r":2,"c":0,"v":25}
  • {"r":3,"c":2,"v":11}
  • {"r":0,"c":0,"v":95}
  • {"r":2,"c":1,"v":21}
  • {"r":2,"c":2,"v":28}
  • {"r":3,"c":3,"v":17}
  • {"r":4,"c":2,"v":2}