expert 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): [21] → [_, _] → [2, 9, 1]

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Answer: Row2[1]=11, Row2[2]=10

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [15] → [_, _] → [7, 1, 6]

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

SubType
number-pyramid
Difficulty
expert
Levels
  • [15]
  • [8,7]
  • [7,1,6]
Base
  • 7
  • 1
  • 6
TopValue
15
HiddenCells
  • {"r":1,"c":1,"v":7}
  • {"r":1,"c":0,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [15] → [_, 8] → [3, _, 4]

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Answer: Row2[1]=7, Row3[2]=4

SubType
number-pyramid
Difficulty
expert
Levels
  • [15]
  • [7,8]
  • [3,4,4]
Base
  • 3
  • 4
  • 4
TopValue
15
HiddenCells
  • {"r":1,"c":0,"v":7}
  • {"r":2,"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): [_] → [3, 4] → [2, _, 3]

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Answer: Row3[2]=1, Row1[1]=7

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