hard Set 20 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [42, _] → [16, _, 32] → [7, 9, 17, _] → [_, 2, _, _, _]

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Answer: Row3[2]=26, Row5[4]=10, Row2[2]=58, Row5[5]=5, Row4[4]=15, Row5[1]=5, Row5[3]=7, Row1[1]=100

SubType
number-pyramid
Difficulty
hard
Levels
  • [100]
  • [42,58]
  • [16,26,32]
  • [7,9,17,15]
  • [5,2,7,10,5]
Base
  • 5
  • 2
  • 7
  • 10
  • 5
TopValue
100
HiddenCells
  • {"r":2,"c":1,"v":26}
  • {"r":4,"c":3,"v":10}
  • {"r":1,"c":1,"v":58}
  • {"r":4,"c":4,"v":5}
  • {"r":3,"c":3,"v":15}
  • {"r":4,"c":0,"v":5}
  • {"r":4,"c":2,"v":7}
  • {"r":0,"c":0,"v":100}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [97] → [53, 44] → [_, 25, 19] → [14, _, 11, _] → [_, _, _, _, _]

Show answer

Answer: Row3[1]=28, Row5[3]=4, Row4[4]=8, Row5[1]=4, Row5[2]=10, Row5[5]=1, Row5[4]=7, Row4[2]=14

SubType
number-pyramid
Difficulty
hard
Levels
  • [97]
  • [53,44]
  • [28,25,19]
  • [14,14,11,8]
  • [4,10,4,7,1]
Base
  • 4
  • 10
  • 4
  • 7
  • 1
TopValue
97
HiddenCells
  • {"r":2,"c":0,"v":28}
  • {"r":4,"c":2,"v":4}
  • {"r":3,"c":3,"v":8}
  • {"r":4,"c":0,"v":4}
  • {"r":4,"c":1,"v":10}
  • {"r":4,"c":4,"v":1}
  • {"r":4,"c":3,"v":7}
  • {"r":3,"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): [_] → [39, 44] → [_, _, 23] → [7, _, _, 13] → [2, _, _, 4, _]

Show answer

Answer: Row5[3]=6, Row4[3]=10, Row3[2]=21, Row3[1]=18, Row5[5]=9, Row5[2]=5, Row1[1]=83, Row4[2]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [83]
  • [39,44]
  • [18,21,23]
  • [7,11,10,13]
  • [2,5,6,4,9]
Base
  • 2
  • 5
  • 6
  • 4
  • 9
TopValue
83
HiddenCells
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":2,"v":10}
  • {"r":2,"c":1,"v":21}
  • {"r":2,"c":0,"v":18}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":1,"v":5}
  • {"r":0,"c":0,"v":83}
  • {"r":3,"c":1,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 51] → [_, 32, 19] → [19, _, _, _] → [_, 9, 10, _, 3]

Show answer

Answer: Row4[2]=19, Row1[1]=121, Row5[4]=3, Row2[1]=70, Row4[4]=6, Row3[1]=38, Row4[3]=13, Row5[1]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [121]
  • [70,51]
  • [38,32,19]
  • [19,19,13,6]
  • [10,9,10,3,3]
Base
  • 10
  • 9
  • 10
  • 3
  • 3
TopValue
121
HiddenCells
  • {"r":3,"c":1,"v":19}
  • {"r":0,"c":0,"v":121}
  • {"r":4,"c":3,"v":3}
  • {"r":1,"c":0,"v":70}
  • {"r":3,"c":3,"v":6}
  • {"r":2,"c":0,"v":38}
  • {"r":3,"c":2,"v":13}
  • {"r":4,"c":0,"v":10}