hard Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [84] → [_, 34] → [29, _, 13] → [14, _, _, _] → [4, 10, _, _, _]

Show answer

Answer: Row3[2]=21, Row4[4]=7, Row5[3]=5, Row5[5]=6, Row4[3]=6, Row2[1]=50, Row4[2]=15, Row5[4]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [84]
  • [50,34]
  • [29,21,13]
  • [14,15,6,7]
  • [4,10,5,1,6]
Base
  • 4
  • 10
  • 5
  • 1
  • 6
TopValue
84
HiddenCells
  • {"r":2,"c":1,"v":21}
  • {"r":3,"c":3,"v":7}
  • {"r":4,"c":2,"v":5}
  • {"r":4,"c":4,"v":6}
  • {"r":3,"c":2,"v":6}
  • {"r":1,"c":0,"v":50}
  • {"r":3,"c":1,"v":15}
  • {"r":4,"c":3,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [72] → [_, _] → [_, _, 29] → [_, _, 10, _] → [8, _, 1, 9, 10]

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Answer: Row3[2]=14, Row2[2]=43, Row4[4]=19, Row2[1]=29, Row3[1]=15, Row4[1]=11, Row4[2]=4, Row5[2]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [72]
  • [29,43]
  • [15,14,29]
  • [11,4,10,19]
  • [8,3,1,9,10]
Base
  • 8
  • 3
  • 1
  • 9
  • 10
TopValue
72
HiddenCells
  • {"r":2,"c":1,"v":14}
  • {"r":1,"c":1,"v":43}
  • {"r":3,"c":3,"v":19}
  • {"r":1,"c":0,"v":29}
  • {"r":2,"c":0,"v":15}
  • {"r":3,"c":0,"v":11}
  • {"r":3,"c":1,"v":4}
  • {"r":4,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 55] → [37, 32, _] → [17, 20, _, 11] → [_, _, 10, _, _]

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Answer: Row5[2]=10, Row2[1]=69, Row3[3]=23, Row5[5]=9, Row1[1]=124, Row5[1]=7, Row4[3]=12, Row5[4]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [124]
  • [69,55]
  • [37,32,23]
  • [17,20,12,11]
  • [7,10,10,2,9]
Base
  • 7
  • 10
  • 10
  • 2
  • 9
TopValue
124
HiddenCells
  • {"r":4,"c":1,"v":10}
  • {"r":1,"c":0,"v":69}
  • {"r":2,"c":2,"v":23}
  • {"r":4,"c":4,"v":9}
  • {"r":0,"c":0,"v":124}
  • {"r":4,"c":0,"v":7}
  • {"r":3,"c":2,"v":12}
  • {"r":4,"c":3,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [75] → [_, 40] → [17, _, _] → [_, _, _, _] → [_, 7, 1, 9, 3]

Show answer

Answer: Row4[1]=9, Row5[1]=2, Row4[3]=10, Row3[2]=18, Row2[1]=35, Row4[2]=8, Row3[3]=22, Row4[4]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [75]
  • [35,40]
  • [17,18,22]
  • [9,8,10,12]
  • [2,7,1,9,3]
Base
  • 2
  • 7
  • 1
  • 9
  • 3
TopValue
75
HiddenCells
  • {"r":3,"c":0,"v":9}
  • {"r":4,"c":0,"v":2}
  • {"r":3,"c":2,"v":10}
  • {"r":2,"c":1,"v":18}
  • {"r":1,"c":0,"v":35}
  • {"r":3,"c":1,"v":8}
  • {"r":2,"c":2,"v":22}
  • {"r":3,"c":3,"v":12}