expert Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [11, 9] → [_, 7, 2]

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Answer: Row3[1]=4, Row1[1]=20

SubType
number-pyramid
Difficulty
expert
Levels
  • [20]
  • [11,9]
  • [4,7,2]
Base
  • 4
  • 7
  • 2
TopValue
20
HiddenCells
  • {"r":2,"c":0,"v":4}
  • {"r":0,"c":0,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [26] → [16, _] → [10, _, 4]

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Answer: Row2[2]=10, Row3[2]=6

SubType
number-pyramid
Difficulty
expert
Levels
  • [26]
  • [16,10]
  • [10,6,4]
Base
  • 10
  • 6
  • 4
TopValue
26
HiddenCells
  • {"r":1,"c":1,"v":10}
  • {"r":2,"c":1,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [14] → [8, 6] → [_, _, 1]

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Answer: Row3[1]=3, Row3[2]=5

SubType
number-pyramid
Difficulty
expert
Levels
  • [14]
  • [8,6]
  • [3,5,1]
Base
  • 3
  • 5
  • 1
TopValue
14
HiddenCells
  • {"r":2,"c":0,"v":3}
  • {"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): [22] → [_, 9] → [_, 5, 4]

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Answer: Row3[1]=8, Row2[1]=13

SubType
number-pyramid
Difficulty
expert
Levels
  • [22]
  • [13,9]
  • [8,5,4]
Base
  • 8
  • 5
  • 4
TopValue
22
HiddenCells
  • {"r":2,"c":0,"v":8}
  • {"r":1,"c":0,"v":13}