hard Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [103] → [_, _] → [_, _, _] → [13, 17, 10, _] → [4, _, 8, _, 7]

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Answer: Row2[1]=57, Row5[2]=9, Row5[4]=2, Row2[2]=46, Row3[2]=27, Row4[4]=9, Row3[1]=30, Row3[3]=19

SubType
number-pyramid
Difficulty
hard
Levels
  • [103]
  • [57,46]
  • [30,27,19]
  • [13,17,10,9]
  • [4,9,8,2,7]
Base
  • 4
  • 9
  • 8
  • 2
  • 7
TopValue
103
HiddenCells
  • {"r":1,"c":0,"v":57}
  • {"r":4,"c":1,"v":9}
  • {"r":4,"c":3,"v":2}
  • {"r":1,"c":1,"v":46}
  • {"r":2,"c":1,"v":27}
  • {"r":3,"c":3,"v":9}
  • {"r":2,"c":0,"v":30}
  • {"r":2,"c":2,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [104] → [_, _] → [33, _, _] → [_, 18, 11, _] → [7, 8, 10, _, _]

Show answer

Answer: Row5[5]=1, Row2[2]=42, Row4[1]=15, Row5[4]=1, Row3[2]=29, Row4[4]=2, Row2[1]=62, Row3[3]=13

SubType
number-pyramid
Difficulty
hard
Levels
  • [104]
  • [62,42]
  • [33,29,13]
  • [15,18,11,2]
  • [7,8,10,1,1]
Base
  • 7
  • 8
  • 10
  • 1
  • 1
TopValue
104
HiddenCells
  • {"r":4,"c":4,"v":1}
  • {"r":1,"c":1,"v":42}
  • {"r":3,"c":0,"v":15}
  • {"r":4,"c":3,"v":1}
  • {"r":2,"c":1,"v":29}
  • {"r":3,"c":3,"v":2}
  • {"r":1,"c":0,"v":62}
  • {"r":2,"c":2,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [49, 56] → [21, 28, _] → [_, _, _, 14] → [1, _, _, 6, _]

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Answer: Row4[1]=7, Row3[3]=28, Row5[2]=6, Row4[3]=14, Row5[3]=8, Row4[2]=14, Row5[5]=8, Row1[1]=105

SubType
number-pyramid
Difficulty
hard
Levels
  • [105]
  • [49,56]
  • [21,28,28]
  • [7,14,14,14]
  • [1,6,8,6,8]
Base
  • 1
  • 6
  • 8
  • 6
  • 8
TopValue
105
HiddenCells
  • {"r":3,"c":0,"v":7}
  • {"r":2,"c":2,"v":28}
  • {"r":4,"c":1,"v":6}
  • {"r":3,"c":2,"v":14}
  • {"r":4,"c":2,"v":8}
  • {"r":3,"c":1,"v":14}
  • {"r":4,"c":4,"v":8}
  • {"r":0,"c":0,"v":105}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [44, 35] → [_, _, 17] → [_, 9, 9, 8] → [_, _, _, _, 1]

Show answer

Answer: Row4[1]=17, Row1[1]=79, Row5[4]=7, Row5[1]=10, Row3[1]=26, Row5[2]=7, Row3[2]=18, Row5[3]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [79]
  • [44,35]
  • [26,18,17]
  • [17,9,9,8]
  • [10,7,2,7,1]
Base
  • 10
  • 7
  • 2
  • 7
  • 1
TopValue
79
HiddenCells
  • {"r":3,"c":0,"v":17}
  • {"r":0,"c":0,"v":79}
  • {"r":4,"c":3,"v":7}
  • {"r":4,"c":0,"v":10}
  • {"r":2,"c":0,"v":26}
  • {"r":4,"c":1,"v":7}
  • {"r":2,"c":1,"v":18}
  • {"r":4,"c":2,"v":2}