expert Set 39 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [3, 9] → [1, 2, _]

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Answer: Row3[3]=7, Row1[1]=12

SubType
number-pyramid
Difficulty
expert
Levels
  • [12]
  • [3,9]
  • [1,2,7]
Base
  • 1
  • 2
  • 7
TopValue
12
HiddenCells
  • {"r":2,"c":2,"v":7}
  • {"r":0,"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): [_] → [6, 9] → [1, _, 4]

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Answer: Row1[1]=15, Row3[2]=5

SubType
number-pyramid
Difficulty
expert
Levels
  • [15]
  • [6,9]
  • [1,5,4]
Base
  • 1
  • 5
  • 4
TopValue
15
HiddenCells
  • {"r":0,"c":0,"v":15}
  • {"r":2,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [12, 6] → [_, 2, _]

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Answer: Row3[1]=10, Row3[3]=4

SubType
number-pyramid
Difficulty
expert
Levels
  • [18]
  • [12,6]
  • [10,2,4]
Base
  • 10
  • 2
  • 4
TopValue
18
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"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): [20] → [_, _] → [2, 6, 6]

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Answer: Row2[2]=12, Row2[1]=8

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