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] → [15, _] → [8, _, 9]

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Answer: Row3[2]=7, Row2[2]=16

SubType
number-pyramid
Difficulty
easy
Levels
  • [31]
  • [15,16]
  • [8,7,9]
Base
  • 8
  • 7
  • 9
TopValue
31
HiddenCells
  • {"r":2,"c":1,"v":7}
  • {"r":1,"c":1,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [_, 10] → [9, _, 8]

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Answer: Row2[1]=11, Row3[2]=2

SubType
number-pyramid
Difficulty
easy
Levels
  • [21]
  • [11,10]
  • [9,2,8]
Base
  • 9
  • 2
  • 8
TopValue
21
HiddenCells
  • {"r":1,"c":0,"v":11}
  • {"r":2,"c":1,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 4] → [2, 1, 3]

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Answer: Row2[1]=3, Row1[1]=7

SubType
number-pyramid
Difficulty
easy
Levels
  • [7]
  • [3,4]
  • [2,1,3]
Base
  • 2
  • 1
  • 3
TopValue
7
HiddenCells
  • {"r":1,"c":0,"v":3}
  • {"r":0,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [15, 15] → [_, 9, 6]

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Answer: Row1[1]=30, Row3[1]=6

SubType
number-pyramid
Difficulty
easy
Levels
  • [30]
  • [15,15]
  • [6,9,6]
Base
  • 6
  • 9
  • 6
TopValue
30
HiddenCells
  • {"r":0,"c":0,"v":30}
  • {"r":2,"c":0,"v":6}