hard Set 50 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [142] → [72, 70] → [35, _, _] → [_, 20, _, _] → [_, _, 10, _, 9]

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Answer: Row5[4]=7, Row5[2]=10, Row5[1]=5, Row3[2]=37, Row4[3]=17, Row4[4]=16, Row4[1]=15, Row3[3]=33

SubType
number-pyramid
Difficulty
hard
Levels
  • [142]
  • [72,70]
  • [35,37,33]
  • [15,20,17,16]
  • [5,10,10,7,9]
Base
  • 5
  • 10
  • 10
  • 7
  • 9
TopValue
142
HiddenCells
  • {"r":4,"c":3,"v":7}
  • {"r":4,"c":1,"v":10}
  • {"r":4,"c":0,"v":5}
  • {"r":2,"c":1,"v":37}
  • {"r":3,"c":2,"v":17}
  • {"r":3,"c":3,"v":16}
  • {"r":3,"c":0,"v":15}
  • {"r":2,"c":2,"v":33}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [64] → [_, _] → [14, 19, _] → [_, _, _, 3] → [2, _, _, 1, 2]

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Answer: Row2[1]=33, Row3[3]=12, Row4[1]=4, Row4[2]=10, Row5[2]=2, Row5[3]=8, Row2[2]=31, Row4[3]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [64]
  • [33,31]
  • [14,19,12]
  • [4,10,9,3]
  • [2,2,8,1,2]
Base
  • 2
  • 2
  • 8
  • 1
  • 2
TopValue
64
HiddenCells
  • {"r":1,"c":0,"v":33}
  • {"r":2,"c":2,"v":12}
  • {"r":3,"c":0,"v":4}
  • {"r":3,"c":1,"v":10}
  • {"r":4,"c":1,"v":2}
  • {"r":4,"c":2,"v":8}
  • {"r":1,"c":1,"v":31}
  • {"r":3,"c":2,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [102] → [53, _] → [_, _, _] → [_, 13, _, _] → [_, 9, 4, 8, 4]

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Answer: Row5[1]=6, Row2[2]=49, Row3[2]=25, Row3[1]=28, Row4[3]=12, Row3[3]=24, Row4[1]=15, Row4[4]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [102]
  • [53,49]
  • [28,25,24]
  • [15,13,12,12]
  • [6,9,4,8,4]
Base
  • 6
  • 9
  • 4
  • 8
  • 4
TopValue
102
HiddenCells
  • {"r":4,"c":0,"v":6}
  • {"r":1,"c":1,"v":49}
  • {"r":2,"c":1,"v":25}
  • {"r":2,"c":0,"v":28}
  • {"r":3,"c":2,"v":12}
  • {"r":2,"c":2,"v":24}
  • {"r":3,"c":0,"v":15}
  • {"r":3,"c":3,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [117] → [60, 57] → [_, 31, 26] → [12, _, _, _] → [3, _, _, _, _]

Show answer

Answer: Row5[5]=6, Row4[2]=17, Row3[1]=29, Row5[2]=9, Row4[3]=14, Row5[4]=6, Row4[4]=12, Row5[3]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [117]
  • [60,57]
  • [29,31,26]
  • [12,17,14,12]
  • [3,9,8,6,6]
Base
  • 3
  • 9
  • 8
  • 6
  • 6
TopValue
117
HiddenCells
  • {"r":4,"c":4,"v":6}
  • {"r":3,"c":1,"v":17}
  • {"r":2,"c":0,"v":29}
  • {"r":4,"c":1,"v":9}
  • {"r":3,"c":2,"v":14}
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":3,"v":12}
  • {"r":4,"c":2,"v":8}