hard Set 28 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, 10] → [19, _, 6, _] → [_, 10, 5, 1, 3]

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Answer: Row2[1]=55, Row4[4]=4, Row4[2]=15, Row2[2]=31, Row3[2]=21, Row5[1]=9, Row3[1]=34, Row1[1]=86

SubType
number-pyramid
Difficulty
hard
Levels
  • [86]
  • [55,31]
  • [34,21,10]
  • [19,15,6,4]
  • [9,10,5,1,3]
Base
  • 9
  • 10
  • 5
  • 1
  • 3
TopValue
86
HiddenCells
  • {"r":1,"c":0,"v":55}
  • {"r":3,"c":3,"v":4}
  • {"r":3,"c":1,"v":15}
  • {"r":1,"c":1,"v":31}
  • {"r":2,"c":1,"v":21}
  • {"r":4,"c":0,"v":9}
  • {"r":2,"c":0,"v":34}
  • {"r":0,"c":0,"v":86}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [95] → [_, 46] → [_, _, _] → [14, _, _, 15] → [4, _, _, 6, 9]

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Answer: Row2[1]=49, Row4[3]=9, Row3[2]=22, Row3[1]=27, Row4[2]=13, Row3[3]=24, Row5[3]=3, Row5[2]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [95]
  • [49,46]
  • [27,22,24]
  • [14,13,9,15]
  • [4,10,3,6,9]
Base
  • 4
  • 10
  • 3
  • 6
  • 9
TopValue
95
HiddenCells
  • {"r":1,"c":0,"v":49}
  • {"r":3,"c":2,"v":9}
  • {"r":2,"c":1,"v":22}
  • {"r":2,"c":0,"v":27}
  • {"r":3,"c":1,"v":13}
  • {"r":2,"c":2,"v":24}
  • {"r":4,"c":2,"v":3}
  • {"r":4,"c":1,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 31] → [_, 17, _] → [16, 10, _, 7] → [_, 9, _, 6, _]

Show answer

Answer: Row3[3]=14, Row3[1]=26, Row5[5]=1, Row5[3]=1, Row4[3]=7, Row5[1]=7, Row1[1]=74, Row2[1]=43

SubType
number-pyramid
Difficulty
hard
Levels
  • [74]
  • [43,31]
  • [26,17,14]
  • [16,10,7,7]
  • [7,9,1,6,1]
Base
  • 7
  • 9
  • 1
  • 6
  • 1
TopValue
74
HiddenCells
  • {"r":2,"c":2,"v":14}
  • {"r":2,"c":0,"v":26}
  • {"r":4,"c":4,"v":1}
  • {"r":4,"c":2,"v":1}
  • {"r":3,"c":2,"v":7}
  • {"r":4,"c":0,"v":7}
  • {"r":0,"c":0,"v":74}
  • {"r":1,"c":0,"v":43}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [25, 24, _] → [_, 12, _, 12] → [_, _, 3, 9, 3]

Show answer

Answer: Row2[2]=48, Row4[3]=12, Row5[2]=9, Row4[1]=13, Row3[3]=24, Row5[1]=4, Row2[1]=49, Row1[1]=97

SubType
number-pyramid
Difficulty
hard
Levels
  • [97]
  • [49,48]
  • [25,24,24]
  • [13,12,12,12]
  • [4,9,3,9,3]
Base
  • 4
  • 9
  • 3
  • 9
  • 3
TopValue
97
HiddenCells
  • {"r":1,"c":1,"v":48}
  • {"r":3,"c":2,"v":12}
  • {"r":4,"c":1,"v":9}
  • {"r":3,"c":0,"v":13}
  • {"r":2,"c":2,"v":24}
  • {"r":4,"c":0,"v":4}
  • {"r":1,"c":0,"v":49}
  • {"r":0,"c":0,"v":97}