hard Set 30 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [26, _] → [_, 8, 14] → [_, _, 3, 11] → [_, 4, 1, _, _]

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Answer: Row4[2]=5, Row4[1]=13, Row3[1]=18, Row5[5]=9, Row1[1]=48, Row5[4]=2, Row5[1]=9, Row2[2]=22

SubType
number-pyramid
Difficulty
hard
Levels
  • [48]
  • [26,22]
  • [18,8,14]
  • [13,5,3,11]
  • [9,4,1,2,9]
Base
  • 9
  • 4
  • 1
  • 2
  • 9
TopValue
48
HiddenCells
  • {"r":3,"c":1,"v":5}
  • {"r":3,"c":0,"v":13}
  • {"r":2,"c":0,"v":18}
  • {"r":4,"c":4,"v":9}
  • {"r":0,"c":0,"v":48}
  • {"r":4,"c":3,"v":2}
  • {"r":4,"c":0,"v":9}
  • {"r":1,"c":1,"v":22}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 19] → [17, _, _] → [11, _, 5, _] → [9, 2, _, 1, _]

Show answer

Answer: Row1[1]=47, Row5[5]=2, Row2[1]=28, Row4[4]=3, Row3[3]=8, Row3[2]=11, Row5[3]=4, Row4[2]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [47]
  • [28,19]
  • [17,11,8]
  • [11,6,5,3]
  • [9,2,4,1,2]
Base
  • 9
  • 2
  • 4
  • 1
  • 2
TopValue
47
HiddenCells
  • {"r":0,"c":0,"v":47}
  • {"r":4,"c":4,"v":2}
  • {"r":1,"c":0,"v":28}
  • {"r":3,"c":3,"v":3}
  • {"r":2,"c":2,"v":8}
  • {"r":2,"c":1,"v":11}
  • {"r":4,"c":2,"v":4}
  • {"r":3,"c":1,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [97] → [52, _] → [_, 21, 24] → [_, 12, _, _] → [_, 10, _, _, 8]

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Answer: Row2[2]=45, Row4[4]=15, Row5[4]=7, Row4[3]=9, Row4[1]=19, Row3[1]=31, Row5[3]=2, Row5[1]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [97]
  • [52,45]
  • [31,21,24]
  • [19,12,9,15]
  • [9,10,2,7,8]
Base
  • 9
  • 10
  • 2
  • 7
  • 8
TopValue
97
HiddenCells
  • {"r":1,"c":1,"v":45}
  • {"r":3,"c":3,"v":15}
  • {"r":4,"c":3,"v":7}
  • {"r":3,"c":2,"v":9}
  • {"r":3,"c":0,"v":19}
  • {"r":2,"c":0,"v":31}
  • {"r":4,"c":2,"v":2}
  • {"r":4,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [45, 53] → [_, 28, 25] → [_, 12, _, _] → [_, 2, 10, _, _]

Show answer

Answer: Row4[1]=5, Row5[1]=3, Row5[5]=3, Row1[1]=98, Row4[4]=9, Row5[4]=6, Row4[3]=16, Row3[1]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [98]
  • [45,53]
  • [17,28,25]
  • [5,12,16,9]
  • [3,2,10,6,3]
Base
  • 3
  • 2
  • 10
  • 6
  • 3
TopValue
98
HiddenCells
  • {"r":3,"c":0,"v":5}
  • {"r":4,"c":0,"v":3}
  • {"r":4,"c":4,"v":3}
  • {"r":0,"c":0,"v":98}
  • {"r":3,"c":3,"v":9}
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":2,"v":16}
  • {"r":2,"c":0,"v":17}