hard Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 49] → [28, 27, _] → [12, _, _, _] → [3, 9, _, 4, _]

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Answer: Row3[3]=22, Row4[2]=16, Row4[4]=11, Row2[1]=55, Row1[1]=104, Row4[3]=11, Row5[3]=7, Row5[5]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [104]
  • [55,49]
  • [28,27,22]
  • [12,16,11,11]
  • [3,9,7,4,7]
Base
  • 3
  • 9
  • 7
  • 4
  • 7
TopValue
104
HiddenCells
  • {"r":2,"c":2,"v":22}
  • {"r":3,"c":1,"v":16}
  • {"r":3,"c":3,"v":11}
  • {"r":1,"c":0,"v":55}
  • {"r":0,"c":0,"v":104}
  • {"r":3,"c":2,"v":11}
  • {"r":4,"c":2,"v":7}
  • {"r":4,"c":4,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [117] → [_, _] → [23, _, _] → [8, _, 16, 16] → [1, 7, _, _, _]

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Answer: Row5[5]=8, Row3[3]=32, Row2[1]=54, Row3[2]=31, Row4[2]=15, Row2[2]=63, Row5[3]=8, Row5[4]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [117]
  • [54,63]
  • [23,31,32]
  • [8,15,16,16]
  • [1,7,8,8,8]
Base
  • 1
  • 7
  • 8
  • 8
  • 8
TopValue
117
HiddenCells
  • {"r":4,"c":4,"v":8}
  • {"r":2,"c":2,"v":32}
  • {"r":1,"c":0,"v":54}
  • {"r":2,"c":1,"v":31}
  • {"r":3,"c":1,"v":15}
  • {"r":1,"c":1,"v":63}
  • {"r":4,"c":2,"v":8}
  • {"r":4,"c":3,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [26, 30] → [_, 10, _] → [12, _, _, 14] → [_, 2, _, _, 10]

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Answer: Row4[2]=4, Row3[3]=20, Row5[1]=10, Row5[4]=4, Row4[3]=6, Row5[3]=2, Row1[1]=56, Row3[1]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [56]
  • [26,30]
  • [16,10,20]
  • [12,4,6,14]
  • [10,2,2,4,10]
Base
  • 10
  • 2
  • 2
  • 4
  • 10
TopValue
56
HiddenCells
  • {"r":3,"c":1,"v":4}
  • {"r":2,"c":2,"v":20}
  • {"r":4,"c":0,"v":10}
  • {"r":4,"c":3,"v":4}
  • {"r":3,"c":2,"v":6}
  • {"r":4,"c":2,"v":2}
  • {"r":0,"c":0,"v":56}
  • {"r":2,"c":0,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [124] → [57, _] → [24, 33, _] → [_, _, _, _] → [_, 7, 9, _, 9]

Show answer

Answer: Row2[2]=67, Row4[3]=17, Row5[1]=1, Row3[3]=34, Row5[4]=8, Row4[2]=16, Row4[4]=17, Row4[1]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [124]
  • [57,67]
  • [24,33,34]
  • [8,16,17,17]
  • [1,7,9,8,9]
Base
  • 1
  • 7
  • 9
  • 8
  • 9
TopValue
124
HiddenCells
  • {"r":1,"c":1,"v":67}
  • {"r":3,"c":2,"v":17}
  • {"r":4,"c":0,"v":1}
  • {"r":2,"c":2,"v":34}
  • {"r":4,"c":3,"v":8}
  • {"r":3,"c":1,"v":16}
  • {"r":3,"c":3,"v":17}
  • {"r":3,"c":0,"v":8}