hard Set 100 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [79] → [_, 36] → [_, _, 17] → [_, 9, _, 7] → [10, _, 4, _, _]

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Answer: Row2[1]=43, Row4[3]=10, Row5[5]=1, Row5[4]=6, Row4[1]=15, Row5[2]=5, Row3[2]=19, Row3[1]=24

SubType
number-pyramid
Difficulty
hard
Levels
  • [79]
  • [43,36]
  • [24,19,17]
  • [15,9,10,7]
  • [10,5,4,6,1]
Base
  • 10
  • 5
  • 4
  • 6
  • 1
TopValue
79
HiddenCells
  • {"r":1,"c":0,"v":43}
  • {"r":3,"c":2,"v":10}
  • {"r":4,"c":4,"v":1}
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":0,"v":15}
  • {"r":4,"c":1,"v":5}
  • {"r":2,"c":1,"v":19}
  • {"r":2,"c":0,"v":24}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [77, 76] → [39, 38, _] → [_, _, _, _] → [10, 10, _, _, 9]

Show answer

Answer: Row5[4]=10, Row4[4]=19, Row1[1]=153, Row4[3]=19, Row5[3]=9, Row4[1]=20, Row3[3]=38, Row4[2]=19

SubType
number-pyramid
Difficulty
hard
Levels
  • [153]
  • [77,76]
  • [39,38,38]
  • [20,19,19,19]
  • [10,10,9,10,9]
Base
  • 10
  • 10
  • 9
  • 10
  • 9
TopValue
153
HiddenCells
  • {"r":4,"c":3,"v":10}
  • {"r":3,"c":3,"v":19}
  • {"r":0,"c":0,"v":153}
  • {"r":3,"c":2,"v":19}
  • {"r":4,"c":2,"v":9}
  • {"r":3,"c":0,"v":20}
  • {"r":2,"c":2,"v":38}
  • {"r":3,"c":1,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, _] → [_, _, 12, 5] → [4, 2, 9, 3, 2]

Show answer

Answer: Row3[1]=17, Row2[2]=40, Row4[1]=6, Row1[1]=80, Row4[2]=11, Row3[2]=23, Row2[1]=40, Row3[3]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [80]
  • [40,40]
  • [17,23,17]
  • [6,11,12,5]
  • [4,2,9,3,2]
Base
  • 4
  • 2
  • 9
  • 3
  • 2
TopValue
80
HiddenCells
  • {"r":2,"c":0,"v":17}
  • {"r":1,"c":1,"v":40}
  • {"r":3,"c":0,"v":6}
  • {"r":0,"c":0,"v":80}
  • {"r":3,"c":1,"v":11}
  • {"r":2,"c":1,"v":23}
  • {"r":1,"c":0,"v":40}
  • {"r":2,"c":2,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 59] → [31, _, _] → [_, 15, _, 14] → [9, _, 8, 7, _]

Show answer

Answer: Row3[2]=30, Row5[2]=7, Row4[1]=16, Row3[3]=29, Row2[1]=61, Row1[1]=120, Row5[5]=7, Row4[3]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [120]
  • [61,59]
  • [31,30,29]
  • [16,15,15,14]
  • [9,7,8,7,7]
Base
  • 9
  • 7
  • 8
  • 7
  • 7
TopValue
120
HiddenCells
  • {"r":2,"c":1,"v":30}
  • {"r":4,"c":1,"v":7}
  • {"r":3,"c":0,"v":16}
  • {"r":2,"c":2,"v":29}
  • {"r":1,"c":0,"v":61}
  • {"r":0,"c":0,"v":120}
  • {"r":4,"c":4,"v":7}
  • {"r":3,"c":2,"v":15}