hard Set 50 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [147] → [_, 71] → [_, _, _] → [20, _, 18, 16] → [10, 10, _, _, _]

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Answer: Row4[2]=19, Row5[5]=7, Row3[1]=39, Row3[3]=34, Row5[4]=9, Row5[3]=9, Row3[2]=37, Row2[1]=76

SubType
number-pyramid
Difficulty
hard
Levels
  • [147]
  • [76,71]
  • [39,37,34]
  • [20,19,18,16]
  • [10,10,9,9,7]
Base
  • 10
  • 10
  • 9
  • 9
  • 7
TopValue
147
HiddenCells
  • {"r":3,"c":1,"v":19}
  • {"r":4,"c":4,"v":7}
  • {"r":2,"c":0,"v":39}
  • {"r":2,"c":2,"v":34}
  • {"r":4,"c":3,"v":9}
  • {"r":4,"c":2,"v":9}
  • {"r":2,"c":1,"v":37}
  • {"r":1,"c":0,"v":76}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [26, 28, _] → [11, 15, 13, _] → [4, _, 8, _, _]

Show answer

Answer: Row4[4]=15, Row1[1]=110, Row2[2]=56, Row5[4]=5, Row5[5]=10, Row2[1]=54, Row5[2]=7, Row3[3]=28

SubType
number-pyramid
Difficulty
hard
Levels
  • [110]
  • [54,56]
  • [26,28,28]
  • [11,15,13,15]
  • [4,7,8,5,10]
Base
  • 4
  • 7
  • 8
  • 5
  • 10
TopValue
110
HiddenCells
  • {"r":3,"c":3,"v":15}
  • {"r":0,"c":0,"v":110}
  • {"r":1,"c":1,"v":56}
  • {"r":4,"c":3,"v":5}
  • {"r":4,"c":4,"v":10}
  • {"r":1,"c":0,"v":54}
  • {"r":4,"c":1,"v":7}
  • {"r":2,"c":2,"v":28}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [45, _] → [_, _, 31] → [_, _, _, 16] → [8, 4, 5, _, 6]

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Answer: Row3[1]=21, Row4[3]=15, Row3[2]=24, Row5[4]=10, Row4[1]=12, Row1[1]=100, Row4[2]=9, Row2[2]=55

SubType
number-pyramid
Difficulty
hard
Levels
  • [100]
  • [45,55]
  • [21,24,31]
  • [12,9,15,16]
  • [8,4,5,10,6]
Base
  • 8
  • 4
  • 5
  • 10
  • 6
TopValue
100
HiddenCells
  • {"r":2,"c":0,"v":21}
  • {"r":3,"c":2,"v":15}
  • {"r":2,"c":1,"v":24}
  • {"r":4,"c":3,"v":10}
  • {"r":3,"c":0,"v":12}
  • {"r":0,"c":0,"v":100}
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":1,"v":55}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [37] → [19, 18] → [13, _, 12] → [_, 3, _, _] → [8, _, _, _, _]

Show answer

Answer: Row5[5]=7, Row3[2]=6, Row5[3]=1, Row4[4]=9, Row5[2]=2, Row4[1]=10, Row5[4]=2, Row4[3]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [37]
  • [19,18]
  • [13,6,12]
  • [10,3,3,9]
  • [8,2,1,2,7]
Base
  • 8
  • 2
  • 1
  • 2
  • 7
TopValue
37
HiddenCells
  • {"r":4,"c":4,"v":7}
  • {"r":2,"c":1,"v":6}
  • {"r":4,"c":2,"v":1}
  • {"r":3,"c":3,"v":9}
  • {"r":4,"c":1,"v":2}
  • {"r":3,"c":0,"v":10}
  • {"r":4,"c":3,"v":2}
  • {"r":3,"c":2,"v":3}