easy Set 61 Form Exercise

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

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Answer: Row3[2]=8, Row1[1]=20

SubType
number-pyramid
Difficulty
easy
Levels
  • [20]
  • [10,10]
  • [2,8,2]
Base
  • 2
  • 8
  • 2
TopValue
20
HiddenCells
  • {"r":2,"c":1,"v":8}
  • {"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): [31] → [_, 13] → [_, 8, 5]

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Answer: Row2[1]=18, Row3[1]=10

SubType
number-pyramid
Difficulty
easy
Levels
  • [31]
  • [18,13]
  • [10,8,5]
Base
  • 10
  • 8
  • 5
TopValue
31
HiddenCells
  • {"r":1,"c":0,"v":18}
  • {"r":2,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [12] → [8, 4] → [5, _, _]

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

SubType
number-pyramid
Difficulty
easy
Levels
  • [12]
  • [8,4]
  • [5,3,1]
Base
  • 5
  • 3
  • 1
TopValue
12
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":2,"c":2,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [39] → [20, 19] → [_, _, 9]

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Answer: Row3[1]=10, Row3[2]=10

SubType
number-pyramid
Difficulty
easy
Levels
  • [39]
  • [20,19]
  • [10,10,9]
Base
  • 10
  • 10
  • 9
TopValue
39
HiddenCells
  • {"r":2,"c":0,"v":10}
  • {"r":2,"c":1,"v":10}