hard Set 77 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [30, _, _] → [_, 11, _, _] → [9, 10, 1, 8, 1]

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Answer: Row2[2]=38, Row3[2]=20, Row3[3]=18, Row2[1]=50, Row4[1]=19, Row4[4]=9, Row1[1]=88, Row4[3]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [88]
  • [50,38]
  • [30,20,18]
  • [19,11,9,9]
  • [9,10,1,8,1]
Base
  • 9
  • 10
  • 1
  • 8
  • 1
TopValue
88
HiddenCells
  • {"r":1,"c":1,"v":38}
  • {"r":2,"c":1,"v":20}
  • {"r":2,"c":2,"v":18}
  • {"r":1,"c":0,"v":50}
  • {"r":3,"c":0,"v":19}
  • {"r":3,"c":3,"v":9}
  • {"r":0,"c":0,"v":88}
  • {"r":3,"c":2,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [18, 15, 19] → [_, 6, _, _] → [9, 3, _, _, 4]

Show answer

Answer: Row5[4]=6, Row2[1]=33, Row2[2]=34, Row1[1]=67, Row5[3]=3, Row4[4]=10, Row4[3]=9, Row4[1]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [67]
  • [33,34]
  • [18,15,19]
  • [12,6,9,10]
  • [9,3,3,6,4]
Base
  • 9
  • 3
  • 3
  • 6
  • 4
TopValue
67
HiddenCells
  • {"r":4,"c":3,"v":6}
  • {"r":1,"c":0,"v":33}
  • {"r":1,"c":1,"v":34}
  • {"r":0,"c":0,"v":67}
  • {"r":4,"c":2,"v":3}
  • {"r":3,"c":3,"v":10}
  • {"r":3,"c":2,"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): [_] → [53, _] → [_, 21, 17] → [18, _, 7, _] → [8, 10, _, _, _]

Show answer

Answer: Row3[1]=32, Row4[2]=14, Row2[2]=38, Row1[1]=91, Row5[3]=4, Row4[4]=10, Row5[4]=3, Row5[5]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [91]
  • [53,38]
  • [32,21,17]
  • [18,14,7,10]
  • [8,10,4,3,7]
Base
  • 8
  • 10
  • 4
  • 3
  • 7
TopValue
91
HiddenCells
  • {"r":2,"c":0,"v":32}
  • {"r":3,"c":1,"v":14}
  • {"r":1,"c":1,"v":38}
  • {"r":0,"c":0,"v":91}
  • {"r":4,"c":2,"v":4}
  • {"r":3,"c":3,"v":10}
  • {"r":4,"c":3,"v":3}
  • {"r":4,"c":4,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [81] → [_, _] → [_, _, _] → [_, 6, 13, 11] → [_, 3, 3, 10, _]

Show answer

Answer: Row3[2]=19, Row2[1]=38, Row5[1]=10, Row3[3]=24, Row4[1]=13, Row2[2]=43, Row3[1]=19, Row5[5]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [38,43]
  • [19,19,24]
  • [13,6,13,11]
  • [10,3,3,10,1]
Base
  • 10
  • 3
  • 3
  • 10
  • 1
TopValue
81
HiddenCells
  • {"r":2,"c":1,"v":19}
  • {"r":1,"c":0,"v":38}
  • {"r":4,"c":0,"v":10}
  • {"r":2,"c":2,"v":24}
  • {"r":3,"c":0,"v":13}
  • {"r":1,"c":1,"v":43}
  • {"r":2,"c":0,"v":19}
  • {"r":4,"c":4,"v":1}