easy Set 90 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [15] → [4, 11] → [_, 2, _]

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Answer: Row3[3]=9, Row3[1]=2

SubType
number-pyramid
Difficulty
easy
Levels
  • [15]
  • [4,11]
  • [2,2,9]
Base
  • 2
  • 2
  • 9
TopValue
15
HiddenCells
  • {"r":2,"c":2,"v":9}
  • {"r":2,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [10, 13] → [2, _, 5]

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Answer: Row3[2]=8, Row1[1]=23

SubType
number-pyramid
Difficulty
easy
Levels
  • [23]
  • [10,13]
  • [2,8,5]
Base
  • 2
  • 8
  • 5
TopValue
23
HiddenCells
  • {"r":2,"c":1,"v":8}
  • {"r":0,"c":0,"v":23}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [8, 12] → [4, _, _]

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Answer: Row3[2]=4, Row3[3]=8

SubType
number-pyramid
Difficulty
easy
Levels
  • [20]
  • [8,12]
  • [4,4,8]
Base
  • 4
  • 4
  • 8
TopValue
20
HiddenCells
  • {"r":2,"c":1,"v":4}
  • {"r":2,"c":2,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [19, _] → [10, 9, 2]

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Answer: Row2[2]=11, Row1[1]=30

SubType
number-pyramid
Difficulty
easy
Levels
  • [30]
  • [19,11]
  • [10,9,2]
Base
  • 10
  • 9
  • 2
TopValue
30
HiddenCells
  • {"r":1,"c":1,"v":11}
  • {"r":0,"c":0,"v":30}