medium 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): [_] → [27, 37] → [_, 18, 19] → [1, _, _, 9]

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Answer: Row4[3]=10, Row3[1]=9, Row1[1]=64, Row4[2]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [64]
  • [27,37]
  • [9,18,19]
  • [1,8,10,9]
Base
  • 1
  • 8
  • 10
  • 9
TopValue
64
HiddenCells
  • {"r":3,"c":2,"v":10}
  • {"r":2,"c":0,"v":9}
  • {"r":0,"c":0,"v":64}
  • {"r":3,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [43] → [_, 19] → [_, _, _] → [3, 9, 3, 4]

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Answer: Row2[1]=24, Row3[1]=12, Row3[2]=12, Row3[3]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [43]
  • [24,19]
  • [12,12,7]
  • [3,9,3,4]
Base
  • 3
  • 9
  • 3
  • 4
TopValue
43
HiddenCells
  • {"r":1,"c":0,"v":24}
  • {"r":2,"c":0,"v":12}
  • {"r":2,"c":1,"v":12}
  • {"r":2,"c":2,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [_, 15] → [10, _, _] → [9, _, 5, 4]

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Answer: Row3[2]=6, Row2[1]=16, Row4[2]=1, Row3[3]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [31]
  • [16,15]
  • [10,6,9]
  • [9,1,5,4]
Base
  • 9
  • 1
  • 5
  • 4
TopValue
31
HiddenCells
  • {"r":2,"c":1,"v":6}
  • {"r":1,"c":0,"v":16}
  • {"r":3,"c":1,"v":1}
  • {"r":2,"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): [_] → [20, 18] → [12, _, 10] → [_, _, 2, 8]

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Answer: Row4[1]=6, Row3[2]=8, Row4[2]=6, Row1[1]=38

SubType
number-pyramid
Difficulty
medium
Levels
  • [38]
  • [20,18]
  • [12,8,10]
  • [6,6,2,8]
Base
  • 6
  • 6
  • 2
  • 8
TopValue
38
HiddenCells
  • {"r":3,"c":0,"v":6}
  • {"r":2,"c":1,"v":8}
  • {"r":3,"c":1,"v":6}
  • {"r":0,"c":0,"v":38}