hard Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [29, _] → [12, 17, 19] → [_, 6, _, _] → [4, 2, _, _, _]

Show answer

Answer: Row5[4]=7, Row2[2]=36, Row5[5]=1, Row5[3]=4, Row1[1]=65, Row4[3]=11, Row4[4]=8, Row4[1]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [65]
  • [29,36]
  • [12,17,19]
  • [6,6,11,8]
  • [4,2,4,7,1]
Base
  • 4
  • 2
  • 4
  • 7
  • 1
TopValue
65
HiddenCells
  • {"r":4,"c":3,"v":7}
  • {"r":1,"c":1,"v":36}
  • {"r":4,"c":4,"v":1}
  • {"r":4,"c":2,"v":4}
  • {"r":0,"c":0,"v":65}
  • {"r":3,"c":2,"v":11}
  • {"r":3,"c":3,"v":8}
  • {"r":3,"c":0,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [19, 16, _] → [12, 7, _, _] → [_, 3, 4, 5, _]

Show answer

Answer: Row1[1]=66, Row2[2]=31, Row5[5]=1, Row4[4]=6, Row4[3]=9, Row3[3]=15, Row2[1]=35, Row5[1]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [66]
  • [35,31]
  • [19,16,15]
  • [12,7,9,6]
  • [9,3,4,5,1]
Base
  • 9
  • 3
  • 4
  • 5
  • 1
TopValue
66
HiddenCells
  • {"r":0,"c":0,"v":66}
  • {"r":1,"c":1,"v":31}
  • {"r":4,"c":4,"v":1}
  • {"r":3,"c":3,"v":6}
  • {"r":3,"c":2,"v":9}
  • {"r":2,"c":2,"v":15}
  • {"r":1,"c":0,"v":35}
  • {"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): [64] → [_, _] → [13, _, _] → [8, _, _, 14] → [_, 1, 4, 5, _]

Show answer

Answer: Row4[2]=5, Row2[1]=27, Row4[3]=9, Row5[1]=7, Row5[5]=9, Row3[3]=23, Row2[2]=37, Row3[2]=14

SubType
number-pyramid
Difficulty
hard
Levels
  • [64]
  • [27,37]
  • [13,14,23]
  • [8,5,9,14]
  • [7,1,4,5,9]
Base
  • 7
  • 1
  • 4
  • 5
  • 9
TopValue
64
HiddenCells
  • {"r":3,"c":1,"v":5}
  • {"r":1,"c":0,"v":27}
  • {"r":3,"c":2,"v":9}
  • {"r":4,"c":0,"v":7}
  • {"r":4,"c":4,"v":9}
  • {"r":2,"c":2,"v":23}
  • {"r":1,"c":1,"v":37}
  • {"r":2,"c":1,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [45, 37] → [22, 23, 14] → [10, _, _, _] → [_, 3, _, _, _]

Show answer

Answer: Row5[5]=1, Row4[4]=3, Row5[4]=2, Row5[1]=7, Row5[3]=9, Row4[3]=11, Row1[1]=82, Row4[2]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [82]
  • [45,37]
  • [22,23,14]
  • [10,12,11,3]
  • [7,3,9,2,1]
Base
  • 7
  • 3
  • 9
  • 2
  • 1
TopValue
82
HiddenCells
  • {"r":4,"c":4,"v":1}
  • {"r":3,"c":3,"v":3}
  • {"r":4,"c":3,"v":2}
  • {"r":4,"c":0,"v":7}
  • {"r":4,"c":2,"v":9}
  • {"r":3,"c":2,"v":11}
  • {"r":0,"c":0,"v":82}
  • {"r":3,"c":1,"v":12}