expert Set 61 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [12, _] → [3, 9, _]

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Answer: Row3[3]=6, Row2[2]=15

SubType
number-pyramid
Difficulty
expert
Levels
  • [27]
  • [12,15]
  • [3,9,6]
Base
  • 3
  • 9
  • 6
TopValue
27
HiddenCells
  • {"r":2,"c":2,"v":6}
  • {"r":1,"c":1,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [27] → [_, 15] → [3, 9, _]

Show answer

Answer: Row2[1]=12, Row3[3]=6

SubType
number-pyramid
Difficulty
expert
Levels
  • [27]
  • [12,15]
  • [3,9,6]
Base
  • 3
  • 9
  • 6
TopValue
27
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"r":2,"c":2,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 8] → [9, 4, 4]

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Answer: Row1[1]=21, Row2[1]=13

SubType
number-pyramid
Difficulty
expert
Levels
  • [21]
  • [13,8]
  • [9,4,4]
Base
  • 9
  • 4
  • 4
TopValue
21
HiddenCells
  • {"r":0,"c":0,"v":21}
  • {"r":1,"c":0,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [14, _] → [9, _, 1]

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Answer: Row2[2]=6, Row3[2]=5

SubType
number-pyramid
Difficulty
expert
Levels
  • [20]
  • [14,6]
  • [9,5,1]
Base
  • 9
  • 5
  • 1
TopValue
20
HiddenCells
  • {"r":1,"c":1,"v":6}
  • {"r":2,"c":1,"v":5}