easy 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): [_] → [9, 11] → [5, _, 7]

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Answer: Row3[2]=4, Row1[1]=20

SubType
number-pyramid
Difficulty
easy
Levels
  • [20]
  • [9,11]
  • [5,4,7]
Base
  • 5
  • 4
  • 7
TopValue
20
HiddenCells
  • {"r":2,"c":1,"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): [16] → [8, _] → [5, 3, _]

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Answer: Row3[3]=5, Row2[2]=8

SubType
number-pyramid
Difficulty
easy
Levels
  • [16]
  • [8,8]
  • [5,3,5]
Base
  • 5
  • 3
  • 5
TopValue
16
HiddenCells
  • {"r":2,"c":2,"v":5}
  • {"r":1,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [_, 12] → [_, 8, 4]

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Answer: Row2[1]=16, Row3[1]=8

SubType
number-pyramid
Difficulty
easy
Levels
  • [28]
  • [16,12]
  • [8,8,4]
Base
  • 8
  • 8
  • 4
TopValue
28
HiddenCells
  • {"r":1,"c":0,"v":16}
  • {"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): [11] → [_, 6] → [4, 1, _]

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Answer: Row3[3]=5, Row2[1]=5

SubType
number-pyramid
Difficulty
easy
Levels
  • [11]
  • [5,6]
  • [4,1,5]
Base
  • 4
  • 1
  • 5
TopValue
11
HiddenCells
  • {"r":2,"c":2,"v":5}
  • {"r":1,"c":0,"v":5}