hard Set 30 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [24, 17] → [15, _, _] → [9, _, _, 5] → [5, _, _, 1, _]

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Answer: Row4[3]=3, Row1[1]=41, Row4[2]=6, Row5[2]=4, Row5[3]=2, Row5[5]=4, Row3[2]=9, Row3[3]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [41]
  • [24,17]
  • [15,9,8]
  • [9,6,3,5]
  • [5,4,2,1,4]
Base
  • 5
  • 4
  • 2
  • 1
  • 4
TopValue
41
HiddenCells
  • {"r":3,"c":2,"v":3}
  • {"r":0,"c":0,"v":41}
  • {"r":3,"c":1,"v":6}
  • {"r":4,"c":1,"v":4}
  • {"r":4,"c":2,"v":2}
  • {"r":4,"c":4,"v":4}
  • {"r":2,"c":1,"v":9}
  • {"r":2,"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): [_] → [79, 75] → [_, 39, 36] → [_, 20, _, _] → [_, 10, 10, _, _]

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Answer: Row4[1]=20, Row5[4]=9, Row4[3]=19, Row4[4]=17, Row5[5]=8, Row5[1]=10, Row3[1]=40, Row1[1]=154

SubType
number-pyramid
Difficulty
hard
Levels
  • [154]
  • [79,75]
  • [40,39,36]
  • [20,20,19,17]
  • [10,10,10,9,8]
Base
  • 10
  • 10
  • 10
  • 9
  • 8
TopValue
154
HiddenCells
  • {"r":3,"c":0,"v":20}
  • {"r":4,"c":3,"v":9}
  • {"r":3,"c":2,"v":19}
  • {"r":3,"c":3,"v":17}
  • {"r":4,"c":4,"v":8}
  • {"r":4,"c":0,"v":10}
  • {"r":2,"c":0,"v":40}
  • {"r":0,"c":0,"v":154}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [21, _] → [14, _, 13] → [_, 4, _, 10] → [8, _, 2, _, _]

Show answer

Answer: Row4[1]=10, Row3[2]=7, Row5[2]=2, Row4[3]=3, Row5[5]=9, Row1[1]=41, Row2[2]=20, Row5[4]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [41]
  • [21,20]
  • [14,7,13]
  • [10,4,3,10]
  • [8,2,2,1,9]
Base
  • 8
  • 2
  • 2
  • 1
  • 9
TopValue
41
HiddenCells
  • {"r":3,"c":0,"v":10}
  • {"r":2,"c":1,"v":7}
  • {"r":4,"c":1,"v":2}
  • {"r":3,"c":2,"v":3}
  • {"r":4,"c":4,"v":9}
  • {"r":0,"c":0,"v":41}
  • {"r":1,"c":1,"v":20}
  • {"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): [73] → [36, _] → [_, _, _] → [11, 7, _, 8] → [_, _, _, 7, 1]

Show answer

Answer: Row2[2]=37, Row3[1]=18, Row5[1]=8, Row3[2]=18, Row3[3]=19, Row5[3]=4, Row4[3]=11, Row5[2]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [73]
  • [36,37]
  • [18,18,19]
  • [11,7,11,8]
  • [8,3,4,7,1]
Base
  • 8
  • 3
  • 4
  • 7
  • 1
TopValue
73
HiddenCells
  • {"r":1,"c":1,"v":37}
  • {"r":2,"c":0,"v":18}
  • {"r":4,"c":0,"v":8}
  • {"r":2,"c":1,"v":18}
  • {"r":2,"c":2,"v":19}
  • {"r":4,"c":2,"v":4}
  • {"r":3,"c":2,"v":11}
  • {"r":4,"c":1,"v":3}