easy Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [12, 19] → [3, _, _]

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Answer: Row3[3]=10, Row3[2]=9

SubType
number-pyramid
Difficulty
easy
Levels
  • [31]
  • [12,19]
  • [3,9,10]
Base
  • 3
  • 9
  • 10
TopValue
31
HiddenCells
  • {"r":2,"c":2,"v":10}
  • {"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): [16] → [11, _] → [_, 3, 2]

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Answer: Row2[2]=5, Row3[1]=8

SubType
number-pyramid
Difficulty
easy
Levels
  • [16]
  • [11,5]
  • [8,3,2]
Base
  • 8
  • 3
  • 2
TopValue
16
HiddenCells
  • {"r":1,"c":1,"v":5}
  • {"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): [17] → [_, 6] → [_, 2, 4]

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Answer: Row3[1]=9, Row2[1]=11

SubType
number-pyramid
Difficulty
easy
Levels
  • [17]
  • [11,6]
  • [9,2,4]
Base
  • 9
  • 2
  • 4
TopValue
17
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":1,"c":0,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [16, 15] → [10, 6, _]

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Answer: Row3[3]=9, Row1[1]=31

SubType
number-pyramid
Difficulty
easy
Levels
  • [31]
  • [16,15]
  • [10,6,9]
Base
  • 10
  • 6
  • 9
TopValue
31
HiddenCells
  • {"r":2,"c":2,"v":9}
  • {"r":0,"c":0,"v":31}