hard Set 28 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [108] → [_, _] → [_, 30, 17] → [14, _, _, _] → [7, _, 10, _, 1]

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Answer: Row2[1]=61, Row4[2]=17, Row5[2]=7, Row3[1]=31, Row4[3]=13, Row2[2]=47, Row4[4]=4, Row5[4]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [108]
  • [61,47]
  • [31,30,17]
  • [14,17,13,4]
  • [7,7,10,3,1]
Base
  • 7
  • 7
  • 10
  • 3
  • 1
TopValue
108
HiddenCells
  • {"r":1,"c":0,"v":61}
  • {"r":3,"c":1,"v":17}
  • {"r":4,"c":1,"v":7}
  • {"r":2,"c":0,"v":31}
  • {"r":3,"c":2,"v":13}
  • {"r":1,"c":1,"v":47}
  • {"r":3,"c":3,"v":4}
  • {"r":4,"c":3,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [84] → [_, 40] → [24, _, 20] → [12, 12, _, _] → [_, _, 6, _, _]

Show answer

Answer: Row2[1]=44, Row3[2]=20, Row5[5]=10, Row5[1]=6, Row4[4]=12, Row5[4]=2, Row5[2]=6, Row4[3]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [84]
  • [44,40]
  • [24,20,20]
  • [12,12,8,12]
  • [6,6,6,2,10]
Base
  • 6
  • 6
  • 6
  • 2
  • 10
TopValue
84
HiddenCells
  • {"r":1,"c":0,"v":44}
  • {"r":2,"c":1,"v":20}
  • {"r":4,"c":4,"v":10}
  • {"r":4,"c":0,"v":6}
  • {"r":3,"c":3,"v":12}
  • {"r":4,"c":3,"v":2}
  • {"r":4,"c":1,"v":6}
  • {"r":3,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [66] → [_, _] → [20, _, _] → [_, 8, 6, 12] → [_, 7, _, 5, _]

Show answer

Answer: Row2[1]=34, Row2[2]=32, Row5[5]=7, Row3[2]=14, Row5[3]=1, Row3[3]=18, Row4[1]=12, Row5[1]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [66]
  • [34,32]
  • [20,14,18]
  • [12,8,6,12]
  • [5,7,1,5,7]
Base
  • 5
  • 7
  • 1
  • 5
  • 7
TopValue
66
HiddenCells
  • {"r":1,"c":0,"v":34}
  • {"r":1,"c":1,"v":32}
  • {"r":4,"c":4,"v":7}
  • {"r":2,"c":1,"v":14}
  • {"r":4,"c":2,"v":1}
  • {"r":2,"c":2,"v":18}
  • {"r":3,"c":0,"v":12}
  • {"r":4,"c":0,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [74] → [41, 33] → [23, _, _] → [_, _, _, _] → [10, 4, _, 4, _]

Show answer

Answer: Row3[3]=15, Row3[2]=18, Row4[2]=9, Row4[4]=6, Row5[3]=5, Row4[3]=9, Row5[5]=2, Row4[1]=14

SubType
number-pyramid
Difficulty
hard
Levels
  • [74]
  • [41,33]
  • [23,18,15]
  • [14,9,9,6]
  • [10,4,5,4,2]
Base
  • 10
  • 4
  • 5
  • 4
  • 2
TopValue
74
HiddenCells
  • {"r":2,"c":2,"v":15}
  • {"r":2,"c":1,"v":18}
  • {"r":3,"c":1,"v":9}
  • {"r":3,"c":3,"v":6}
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":2,"v":9}
  • {"r":4,"c":4,"v":2}
  • {"r":3,"c":0,"v":14}