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] → [15, _, 4] → [11, _, _, _] → [_, 3, _, 1, 1]

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Answer: Row3[2]=6, Row4[3]=2, Row5[1]=8, Row2[1]=21, Row1[1]=31, Row4[2]=4, Row4[4]=2, Row5[3]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [31]
  • [21,10]
  • [15,6,4]
  • [11,4,2,2]
  • [8,3,1,1,1]
Base
  • 8
  • 3
  • 1
  • 1
  • 1
TopValue
31
HiddenCells
  • {"r":2,"c":1,"v":6}
  • {"r":3,"c":2,"v":2}
  • {"r":4,"c":0,"v":8}
  • {"r":1,"c":0,"v":21}
  • {"r":0,"c":0,"v":31}
  • {"r":3,"c":1,"v":4}
  • {"r":3,"c":3,"v":2}
  • {"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): [100] → [_, _] → [_, _, 22] → [18, 14, _, 13] → [9, _, 5, _, _]

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Answer: Row4[3]=9, Row2[1]=55, Row5[4]=4, Row3[1]=32, Row5[5]=9, Row2[2]=45, Row3[2]=23, Row5[2]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [100]
  • [55,45]
  • [32,23,22]
  • [18,14,9,13]
  • [9,9,5,4,9]
Base
  • 9
  • 9
  • 5
  • 4
  • 9
TopValue
100
HiddenCells
  • {"r":3,"c":2,"v":9}
  • {"r":1,"c":0,"v":55}
  • {"r":4,"c":3,"v":4}
  • {"r":2,"c":0,"v":32}
  • {"r":4,"c":4,"v":9}
  • {"r":1,"c":1,"v":45}
  • {"r":2,"c":1,"v":23}
  • {"r":4,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 18, 20] → [14, 10, 8, 12] → [_, _, _, 4, _]

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Answer: Row2[1]=42, Row2[2]=38, Row5[2]=6, Row5[1]=8, Row1[1]=80, Row3[1]=24, Row5[5]=8, Row5[3]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [80]
  • [42,38]
  • [24,18,20]
  • [14,10,8,12]
  • [8,6,4,4,8]
Base
  • 8
  • 6
  • 4
  • 4
  • 8
TopValue
80
HiddenCells
  • {"r":1,"c":0,"v":42}
  • {"r":1,"c":1,"v":38}
  • {"r":4,"c":1,"v":6}
  • {"r":4,"c":0,"v":8}
  • {"r":0,"c":0,"v":80}
  • {"r":2,"c":0,"v":24}
  • {"r":4,"c":4,"v":8}
  • {"r":4,"c":2,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [28, _] → [_, _, _] → [_, 4, 10, 13] → [_, _, 1, 9, 4]

Show answer

Answer: Row5[2]=3, Row3[3]=23, Row1[1]=65, Row4[1]=10, Row3[1]=14, Row3[2]=14, Row2[2]=37, Row5[1]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [65]
  • [28,37]
  • [14,14,23]
  • [10,4,10,13]
  • [7,3,1,9,4]
Base
  • 7
  • 3
  • 1
  • 9
  • 4
TopValue
65
HiddenCells
  • {"r":4,"c":1,"v":3}
  • {"r":2,"c":2,"v":23}
  • {"r":0,"c":0,"v":65}
  • {"r":3,"c":0,"v":10}
  • {"r":2,"c":0,"v":14}
  • {"r":2,"c":1,"v":14}
  • {"r":1,"c":1,"v":37}
  • {"r":4,"c":0,"v":7}