hard Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, _] → [9, _, _, 13] → [2, 7, 2, 9, 4]

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Answer: Row1[1]=82, Row3[3]=24, Row4[2]=9, Row3[2]=20, Row3[1]=18, Row2[1]=38, Row4[3]=11, Row2[2]=44

SubType
number-pyramid
Difficulty
hard
Levels
  • [82]
  • [38,44]
  • [18,20,24]
  • [9,9,11,13]
  • [2,7,2,9,4]
Base
  • 2
  • 7
  • 2
  • 9
  • 4
TopValue
82
HiddenCells
  • {"r":0,"c":0,"v":82}
  • {"r":2,"c":2,"v":24}
  • {"r":3,"c":1,"v":9}
  • {"r":2,"c":1,"v":20}
  • {"r":2,"c":0,"v":18}
  • {"r":1,"c":0,"v":38}
  • {"r":3,"c":2,"v":11}
  • {"r":1,"c":1,"v":44}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [87] → [_, _] → [16, 21, _] → [_, _, 12, _] → [_, 6, 3, 9, _]

Show answer

Answer: Row2[2]=50, Row5[1]=1, Row4[4]=17, Row5[5]=8, Row2[1]=37, Row3[3]=29, Row4[2]=9, Row4[1]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [87]
  • [37,50]
  • [16,21,29]
  • [7,9,12,17]
  • [1,6,3,9,8]
Base
  • 1
  • 6
  • 3
  • 9
  • 8
TopValue
87
HiddenCells
  • {"r":1,"c":1,"v":50}
  • {"r":4,"c":0,"v":1}
  • {"r":3,"c":3,"v":17}
  • {"r":4,"c":4,"v":8}
  • {"r":1,"c":0,"v":37}
  • {"r":2,"c":2,"v":29}
  • {"r":3,"c":1,"v":9}
  • {"r":3,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [33, _] → [_, 18, _] → [6, _, _, 13] → [_, 5, _, 5, 8]

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Answer: Row5[1]=1, Row4[2]=9, Row3[1]=15, Row1[1]=73, Row5[3]=4, Row4[3]=9, Row3[3]=22, Row2[2]=40

SubType
number-pyramid
Difficulty
hard
Levels
  • [73]
  • [33,40]
  • [15,18,22]
  • [6,9,9,13]
  • [1,5,4,5,8]
Base
  • 1
  • 5
  • 4
  • 5
  • 8
TopValue
73
HiddenCells
  • {"r":4,"c":0,"v":1}
  • {"r":3,"c":1,"v":9}
  • {"r":2,"c":0,"v":15}
  • {"r":0,"c":0,"v":73}
  • {"r":4,"c":2,"v":4}
  • {"r":3,"c":2,"v":9}
  • {"r":2,"c":2,"v":22}
  • {"r":1,"c":1,"v":40}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 34] → [24, _, 18] → [_, _, 7, 11] → [9, _, 3, _, _]

Show answer

Answer: Row1[1]=74, Row5[4]=4, Row5[2]=6, Row4[1]=15, Row2[1]=40, Row4[2]=9, Row5[5]=7, Row3[2]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [74]
  • [40,34]
  • [24,16,18]
  • [15,9,7,11]
  • [9,6,3,4,7]
Base
  • 9
  • 6
  • 3
  • 4
  • 7
TopValue
74
HiddenCells
  • {"r":0,"c":0,"v":74}
  • {"r":4,"c":3,"v":4}
  • {"r":4,"c":1,"v":6}
  • {"r":3,"c":0,"v":15}
  • {"r":1,"c":0,"v":40}
  • {"r":3,"c":1,"v":9}
  • {"r":4,"c":4,"v":7}
  • {"r":2,"c":1,"v":16}