expert 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): [27] → [_, 12] → [5, 10, _]

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Answer: Row2[1]=15, Row3[3]=2

SubType
number-pyramid
Difficulty
expert
Levels
  • [27]
  • [15,12]
  • [5,10,2]
Base
  • 5
  • 10
  • 2
TopValue
27
HiddenCells
  • {"r":1,"c":0,"v":15}
  • {"r":2,"c":2,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [18] → [9, 9] → [_, 5, _]

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Answer: Row3[1]=4, Row3[3]=4

SubType
number-pyramid
Difficulty
expert
Levels
  • [18]
  • [9,9]
  • [4,5,4]
Base
  • 4
  • 5
  • 4
TopValue
18
HiddenCells
  • {"r":2,"c":0,"v":4}
  • {"r":2,"c":2,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [13, 6] → [_, 5, _]

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Answer: Row3[1]=8, Row3[3]=1

SubType
number-pyramid
Difficulty
expert
Levels
  • [19]
  • [13,6]
  • [8,5,1]
Base
  • 8
  • 5
  • 1
TopValue
19
HiddenCells
  • {"r":2,"c":0,"v":8}
  • {"r":2,"c":2,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [28] → [_, _] → [4, 7, 10]

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Answer: Row2[2]=17, Row2[1]=11

SubType
number-pyramid
Difficulty
expert
Levels
  • [28]
  • [11,17]
  • [4,7,10]
Base
  • 4
  • 7
  • 10
TopValue
28
HiddenCells
  • {"r":1,"c":1,"v":17}
  • {"r":1,"c":0,"v":11}