hard Set 99 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [61] → [24, 37] → [_, 13, _] → [_, 5, _, _] → [_, 4, _, 7, _]

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Answer: Row4[1]=6, Row5[5]=9, Row4[3]=8, Row3[1]=11, Row4[4]=16, Row5[3]=1, Row3[3]=24, Row5[1]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [61]
  • [24,37]
  • [11,13,24]
  • [6,5,8,16]
  • [2,4,1,7,9]
Base
  • 2
  • 4
  • 1
  • 7
  • 9
TopValue
61
HiddenCells
  • {"r":3,"c":0,"v":6}
  • {"r":4,"c":4,"v":9}
  • {"r":3,"c":2,"v":8}
  • {"r":2,"c":0,"v":11}
  • {"r":3,"c":3,"v":16}
  • {"r":4,"c":2,"v":1}
  • {"r":2,"c":2,"v":24}
  • {"r":4,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [42, _] → [24, _, _] → [14, _, 8, _] → [5, _, 1, _, 3]

Show answer

Answer: Row4[2]=10, Row1[1]=78, Row2[2]=36, Row5[2]=9, Row5[4]=7, Row4[4]=10, Row3[2]=18, Row3[3]=18

SubType
number-pyramid
Difficulty
hard
Levels
  • [78]
  • [42,36]
  • [24,18,18]
  • [14,10,8,10]
  • [5,9,1,7,3]
Base
  • 5
  • 9
  • 1
  • 7
  • 3
TopValue
78
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":0,"c":0,"v":78}
  • {"r":1,"c":1,"v":36}
  • {"r":4,"c":1,"v":9}
  • {"r":4,"c":3,"v":7}
  • {"r":3,"c":3,"v":10}
  • {"r":2,"c":1,"v":18}
  • {"r":2,"c":2,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 61] → [26, _, 33] → [_, 14, 14, _] → [2, _, _, 10, _]

Show answer

Answer: Row5[3]=4, Row4[4]=19, Row3[2]=28, Row2[1]=54, Row1[1]=115, Row5[2]=10, Row5[5]=9, Row4[1]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [115]
  • [54,61]
  • [26,28,33]
  • [12,14,14,19]
  • [2,10,4,10,9]
Base
  • 2
  • 10
  • 4
  • 10
  • 9
TopValue
115
HiddenCells
  • {"r":4,"c":2,"v":4}
  • {"r":3,"c":3,"v":19}
  • {"r":2,"c":1,"v":28}
  • {"r":1,"c":0,"v":54}
  • {"r":0,"c":0,"v":115}
  • {"r":4,"c":1,"v":10}
  • {"r":4,"c":4,"v":9}
  • {"r":3,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [45, 40] → [22, _, _] → [_, _, _, 7] → [4, _, _, 2, 5]

Show answer

Answer: Row3[3]=17, Row3[2]=23, Row5[2]=5, Row4[2]=13, Row4[1]=9, Row4[3]=10, Row5[3]=8, Row1[1]=85

SubType
number-pyramid
Difficulty
hard
Levels
  • [85]
  • [45,40]
  • [22,23,17]
  • [9,13,10,7]
  • [4,5,8,2,5]
Base
  • 4
  • 5
  • 8
  • 2
  • 5
TopValue
85
HiddenCells
  • {"r":2,"c":2,"v":17}
  • {"r":2,"c":1,"v":23}
  • {"r":4,"c":1,"v":5}
  • {"r":3,"c":1,"v":13}
  • {"r":3,"c":0,"v":9}
  • {"r":3,"c":2,"v":10}
  • {"r":4,"c":2,"v":8}
  • {"r":0,"c":0,"v":85}