hard Set 80 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [17, _, 23] → [_, 9, _, 12] → [7, _, 8, _, 9]

Show answer

Answer: Row3[2]=20, Row5[2]=1, Row2[2]=43, Row4[1]=8, Row5[4]=3, Row2[1]=37, Row4[3]=11, Row1[1]=80

SubType
number-pyramid
Difficulty
hard
Levels
  • [80]
  • [37,43]
  • [17,20,23]
  • [8,9,11,12]
  • [7,1,8,3,9]
Base
  • 7
  • 1
  • 8
  • 3
  • 9
TopValue
80
HiddenCells
  • {"r":2,"c":1,"v":20}
  • {"r":4,"c":1,"v":1}
  • {"r":1,"c":1,"v":43}
  • {"r":3,"c":0,"v":8}
  • {"r":4,"c":3,"v":3}
  • {"r":1,"c":0,"v":37}
  • {"r":3,"c":2,"v":11}
  • {"r":0,"c":0,"v":80}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [85] → [47, _] → [_, _, _] → [_, _, 9, 8] → [9, _, 7, 2, _]

Show answer

Answer: Row3[2]=21, Row5[5]=6, Row4[1]=14, Row5[2]=5, Row3[3]=17, Row3[1]=26, Row4[2]=12, Row2[2]=38

SubType
number-pyramid
Difficulty
hard
Levels
  • [85]
  • [47,38]
  • [26,21,17]
  • [14,12,9,8]
  • [9,5,7,2,6]
Base
  • 9
  • 5
  • 7
  • 2
  • 6
TopValue
85
HiddenCells
  • {"r":2,"c":1,"v":21}
  • {"r":4,"c":4,"v":6}
  • {"r":3,"c":0,"v":14}
  • {"r":4,"c":1,"v":5}
  • {"r":2,"c":2,"v":17}
  • {"r":2,"c":0,"v":26}
  • {"r":3,"c":1,"v":12}
  • {"r":1,"c":1,"v":38}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [102] → [_, 54] → [_, 25, _] → [12, _, _, _] → [_, 6, 5, 9, _]

Show answer

Answer: Row3[3]=29, Row5[5]=6, Row3[1]=23, Row5[1]=6, Row4[4]=15, Row2[1]=48, Row4[2]=11, Row4[3]=14

SubType
number-pyramid
Difficulty
hard
Levels
  • [102]
  • [48,54]
  • [23,25,29]
  • [12,11,14,15]
  • [6,6,5,9,6]
Base
  • 6
  • 6
  • 5
  • 9
  • 6
TopValue
102
HiddenCells
  • {"r":2,"c":2,"v":29}
  • {"r":4,"c":4,"v":6}
  • {"r":2,"c":0,"v":23}
  • {"r":4,"c":0,"v":6}
  • {"r":3,"c":3,"v":15}
  • {"r":1,"c":0,"v":48}
  • {"r":3,"c":1,"v":11}
  • {"r":3,"c":2,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [101] → [53, _] → [_, 27, _] → [_, _, 14, _] → [_, 4, 9, 5, _]

Show answer

Answer: Row3[1]=26, Row3[3]=21, Row4[4]=7, Row5[5]=2, Row4[2]=13, Row4[1]=13, Row2[2]=48, Row5[1]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [101]
  • [53,48]
  • [26,27,21]
  • [13,13,14,7]
  • [9,4,9,5,2]
Base
  • 9
  • 4
  • 9
  • 5
  • 2
TopValue
101
HiddenCells
  • {"r":2,"c":0,"v":26}
  • {"r":2,"c":2,"v":21}
  • {"r":3,"c":3,"v":7}
  • {"r":4,"c":4,"v":2}
  • {"r":3,"c":1,"v":13}
  • {"r":3,"c":0,"v":13}
  • {"r":1,"c":1,"v":48}
  • {"r":4,"c":0,"v":9}