easy 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): [_] → [_, 19] → [10, 10, 9]

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Answer: Row2[1]=20, Row1[1]=39

SubType
number-pyramid
Difficulty
easy
Levels
  • [39]
  • [20,19]
  • [10,10,9]
Base
  • 10
  • 10
  • 9
TopValue
39
HiddenCells
  • {"r":1,"c":0,"v":20}
  • {"r":0,"c":0,"v":39}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [36] → [18, 18] → [_, _, 9]

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

SubType
number-pyramid
Difficulty
easy
Levels
  • [36]
  • [18,18]
  • [9,9,9]
Base
  • 9
  • 9
  • 9
TopValue
36
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":2,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 12] → [7, 8, 4]

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Answer: Row2[1]=15, Row1[1]=27

SubType
number-pyramid
Difficulty
easy
Levels
  • [27]
  • [15,12]
  • [7,8,4]
Base
  • 7
  • 8
  • 4
TopValue
27
HiddenCells
  • {"r":1,"c":0,"v":15}
  • {"r":0,"c":0,"v":27}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [9, 10] → [8, _, 9]

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Answer: Row3[2]=1, Row1[1]=19

SubType
number-pyramid
Difficulty
easy
Levels
  • [19]
  • [9,10]
  • [8,1,9]
Base
  • 8
  • 1
  • 9
TopValue
19
HiddenCells
  • {"r":2,"c":1,"v":1}
  • {"r":0,"c":0,"v":19}