expert 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] → [15, _] → [8, 7, _]

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Answer: Row2[2]=15, Row3[3]=8

SubType
number-pyramid
Difficulty
expert
Levels
  • [30]
  • [15,15]
  • [8,7,8]
Base
  • 8
  • 7
  • 8
TopValue
30
HiddenCells
  • {"r":1,"c":1,"v":15}
  • {"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): [31] → [18, 13] → [9, _, _]

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Answer: Row3[2]=9, Row3[3]=4

SubType
number-pyramid
Difficulty
expert
Levels
  • [31]
  • [18,13]
  • [9,9,4]
Base
  • 9
  • 9
  • 4
TopValue
31
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":2,"c":2,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [7] → [_, _] → [2, 2, 1]

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Answer: Row2[1]=4, Row2[2]=3

SubType
number-pyramid
Difficulty
expert
Levels
  • [7]
  • [4,3]
  • [2,2,1]
Base
  • 2
  • 2
  • 1
TopValue
7
HiddenCells
  • {"r":1,"c":0,"v":4}
  • {"r":1,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [14] → [_, 6] → [6, _, 4]

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Answer: Row3[2]=2, Row2[1]=8

SubType
number-pyramid
Difficulty
expert
Levels
  • [14]
  • [8,6]
  • [6,2,4]
Base
  • 6
  • 2
  • 4
TopValue
14
HiddenCells
  • {"r":2,"c":1,"v":2}
  • {"r":1,"c":0,"v":8}