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): [_] → [_, 44] → [_, _, _] → [14, 15, 11, 7] → [_, 7, 8, _, _]

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Answer: Row5[1]=7, Row3[3]=18, Row3[2]=26, Row2[1]=55, Row5[5]=4, Row3[1]=29, Row1[1]=99, Row5[4]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [99]
  • [55,44]
  • [29,26,18]
  • [14,15,11,7]
  • [7,7,8,3,4]
Base
  • 7
  • 7
  • 8
  • 3
  • 4
TopValue
99
HiddenCells
  • {"r":4,"c":0,"v":7}
  • {"r":2,"c":2,"v":18}
  • {"r":2,"c":1,"v":26}
  • {"r":1,"c":0,"v":55}
  • {"r":4,"c":4,"v":4}
  • {"r":2,"c":0,"v":29}
  • {"r":0,"c":0,"v":99}
  • {"r":4,"c":3,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [109] → [56, _] → [_, _, 25] → [_, _, _, 12] → [_, 9, _, 7, 5]

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Answer: Row4[1]=13, Row2[2]=53, Row4[3]=13, Row4[2]=15, Row5[3]=6, Row3[2]=28, Row3[1]=28, Row5[1]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [109]
  • [56,53]
  • [28,28,25]
  • [13,15,13,12]
  • [4,9,6,7,5]
Base
  • 4
  • 9
  • 6
  • 7
  • 5
TopValue
109
HiddenCells
  • {"r":3,"c":0,"v":13}
  • {"r":1,"c":1,"v":53}
  • {"r":3,"c":2,"v":13}
  • {"r":3,"c":1,"v":15}
  • {"r":4,"c":2,"v":6}
  • {"r":2,"c":1,"v":28}
  • {"r":2,"c":0,"v":28}
  • {"r":4,"c":0,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [29, _] → [_, _, 19] → [4, 7, _, 8] → [2, _, _, 6, _]

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Answer: Row3[2]=18, Row1[1]=66, Row5[5]=2, Row5[3]=5, Row4[3]=11, Row5[2]=2, Row2[2]=37, Row3[1]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [66]
  • [29,37]
  • [11,18,19]
  • [4,7,11,8]
  • [2,2,5,6,2]
Base
  • 2
  • 2
  • 5
  • 6
  • 2
TopValue
66
HiddenCells
  • {"r":2,"c":1,"v":18}
  • {"r":0,"c":0,"v":66}
  • {"r":4,"c":4,"v":2}
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":2,"v":11}
  • {"r":4,"c":1,"v":2}
  • {"r":1,"c":1,"v":37}
  • {"r":2,"c":0,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [56] → [_, 30] → [12, 14, 16] → [_, _, _, 8] → [2, _, _, _, _]

Show answer

Answer: Row4[1]=6, Row4[3]=8, Row5[3]=2, Row2[1]=26, Row5[4]=6, Row5[5]=2, Row5[2]=4, Row4[2]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [56]
  • [26,30]
  • [12,14,16]
  • [6,6,8,8]
  • [2,4,2,6,2]
Base
  • 2
  • 4
  • 2
  • 6
  • 2
TopValue
56
HiddenCells
  • {"r":3,"c":0,"v":6}
  • {"r":3,"c":2,"v":8}
  • {"r":4,"c":2,"v":2}
  • {"r":1,"c":0,"v":26}
  • {"r":4,"c":3,"v":6}
  • {"r":4,"c":4,"v":2}
  • {"r":4,"c":1,"v":4}
  • {"r":3,"c":1,"v":6}