easy Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [18, 10] → [_, 9, _]

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

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":2,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [21] → [13, _] → [_, 6, 2]

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Answer: Row3[1]=7, Row2[2]=8

SubType
number-pyramid
Difficulty
easy
Levels
  • [21]
  • [13,8]
  • [7,6,2]
Base
  • 7
  • 6
  • 2
TopValue
21
HiddenCells
  • {"r":2,"c":0,"v":7}
  • {"r":1,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [6, 9] → [_, 1, 8]

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Answer: Row3[1]=5, Row1[1]=15

SubType
number-pyramid
Difficulty
easy
Levels
  • [15]
  • [6,9]
  • [5,1,8]
Base
  • 5
  • 1
  • 8
TopValue
15
HiddenCells
  • {"r":2,"c":0,"v":5}
  • {"r":0,"c":0,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [_, 14] → [8, _, 8]

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Answer: Row2[1]=14, Row3[2]=6

SubType
number-pyramid
Difficulty
easy
Levels
  • [28]
  • [14,14]
  • [8,6,8]
Base
  • 8
  • 6
  • 8
TopValue
28
HiddenCells
  • {"r":1,"c":0,"v":14}
  • {"r":2,"c":1,"v":6}