expert Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [_, 13] → [3, 9, _]

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Answer: Row2[1]=12, Row3[3]=4

SubType
number-pyramid
Difficulty
expert
Levels
  • [25]
  • [12,13]
  • [3,9,4]
Base
  • 3
  • 9
  • 4
TopValue
25
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"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): [19] → [6, _] → [2, 4, _]

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Answer: Row2[2]=13, Row3[3]=9

SubType
number-pyramid
Difficulty
expert
Levels
  • [19]
  • [6,13]
  • [2,4,9]
Base
  • 2
  • 4
  • 9
TopValue
19
HiddenCells
  • {"r":1,"c":1,"v":13}
  • {"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): [_] → [16, 14] → [_, 8, 6]

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Answer: Row1[1]=30, Row3[1]=8

SubType
number-pyramid
Difficulty
expert
Levels
  • [30]
  • [16,14]
  • [8,8,6]
Base
  • 8
  • 8
  • 6
TopValue
30
HiddenCells
  • {"r":0,"c":0,"v":30}
  • {"r":2,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [10, 7] → [4, 6, _]

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Answer: Row1[1]=17, Row3[3]=1

SubType
number-pyramid
Difficulty
expert
Levels
  • [17]
  • [10,7]
  • [4,6,1]
Base
  • 4
  • 6
  • 1
TopValue
17
HiddenCells
  • {"r":0,"c":0,"v":17}
  • {"r":2,"c":2,"v":1}