expert Set 87 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [26] → [16, _] → [10, 6, _]

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Answer: Row2[2]=10, Row3[3]=4

SubType
number-pyramid
Difficulty
expert
Levels
  • [26]
  • [16,10]
  • [10,6,4]
Base
  • 10
  • 6
  • 4
TopValue
26
HiddenCells
  • {"r":1,"c":1,"v":10}
  • {"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): [39] → [_, 19] → [10, _, 9]

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Answer: Row3[2]=10, Row2[1]=20

SubType
number-pyramid
Difficulty
expert
Levels
  • [39]
  • [20,19]
  • [10,10,9]
Base
  • 10
  • 10
  • 9
TopValue
39
HiddenCells
  • {"r":2,"c":1,"v":10}
  • {"r":1,"c":0,"v":20}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [16, _] → [_, 9, 6]

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Answer: Row2[2]=15, Row3[1]=7

SubType
number-pyramid
Difficulty
expert
Levels
  • [31]
  • [16,15]
  • [7,9,6]
Base
  • 7
  • 9
  • 6
TopValue
31
HiddenCells
  • {"r":1,"c":1,"v":15}
  • {"r":2,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [31] → [13, 18] → [4, _, _]

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

SubType
number-pyramid
Difficulty
expert
Levels
  • [31]
  • [13,18]
  • [4,9,9]
Base
  • 4
  • 9
  • 9
TopValue
31
HiddenCells
  • {"r":2,"c":2,"v":9}
  • {"r":2,"c":1,"v":9}