easy Set 52 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [9, 12] → [4, _, _]

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Answer: Row3[3]=7, Row3[2]=5

SubType
number-pyramid
Difficulty
easy
Levels
  • [21]
  • [9,12]
  • [4,5,7]
Base
  • 4
  • 5
  • 7
TopValue
21
HiddenCells
  • {"r":2,"c":2,"v":7}
  • {"r":2,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [15] → [_, _] → [9, 2, 2]

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Answer: Row2[1]=11, Row2[2]=4

SubType
number-pyramid
Difficulty
easy
Levels
  • [15]
  • [11,4]
  • [9,2,2]
Base
  • 9
  • 2
  • 2
TopValue
15
HiddenCells
  • {"r":1,"c":0,"v":11}
  • {"r":1,"c":1,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, _] → [5, 8, 7]

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Answer: Row1[1]=28, Row2[2]=15

SubType
number-pyramid
Difficulty
easy
Levels
  • [28]
  • [13,15]
  • [5,8,7]
Base
  • 5
  • 8
  • 7
TopValue
28
HiddenCells
  • {"r":0,"c":0,"v":28}
  • {"r":1,"c":1,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [10, _] → [_, 2, 7]

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Answer: Row3[1]=8, Row2[2]=9

SubType
number-pyramid
Difficulty
easy
Levels
  • [19]
  • [10,9]
  • [8,2,7]
Base
  • 8
  • 2
  • 7
TopValue
19
HiddenCells
  • {"r":2,"c":0,"v":8}
  • {"r":1,"c":1,"v":9}