easy Set 18 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [4, 11] → [_, 3, 8]

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Answer: Row1[1]=15, Row3[1]=1

SubType
number-pyramid
Difficulty
easy
Levels
  • [15]
  • [4,11]
  • [1,3,8]
Base
  • 1
  • 3
  • 8
TopValue
15
HiddenCells
  • {"r":0,"c":0,"v":15}
  • {"r":2,"c":0,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [_, 11] → [_, 2, 9]

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Answer: Row2[1]=7, Row3[1]=5

SubType
number-pyramid
Difficulty
easy
Levels
  • [18]
  • [7,11]
  • [5,2,9]
Base
  • 5
  • 2
  • 9
TopValue
18
HiddenCells
  • {"r":1,"c":0,"v":7}
  • {"r":2,"c":0,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [12, 19] → [_, _, 10]

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

SubType
number-pyramid
Difficulty
easy
Levels
  • [31]
  • [12,19]
  • [3,9,10]
Base
  • 3
  • 9
  • 10
TopValue
31
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":2,"c":0,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [_, 10] → [9, 9, _]

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Answer: Row3[3]=1, Row2[1]=18

SubType
number-pyramid
Difficulty
easy
Levels
  • [28]
  • [18,10]
  • [9,9,1]
Base
  • 9
  • 9
  • 1
TopValue
28
HiddenCells
  • {"r":2,"c":2,"v":1}
  • {"r":1,"c":0,"v":18}