expert Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [4, 5] → [2, 2, _]

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Answer: Row1[1]=9, Row3[3]=3

SubType
number-pyramid
Difficulty
expert
Levels
  • [9]
  • [4,5]
  • [2,2,3]
Base
  • 2
  • 2
  • 3
TopValue
9
HiddenCells
  • {"r":0,"c":0,"v":9}
  • {"r":2,"c":2,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [19] → [12, _] → [9, 3, _]

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Answer: Row2[2]=7, Row3[3]=4

SubType
number-pyramid
Difficulty
expert
Levels
  • [19]
  • [12,7]
  • [9,3,4]
Base
  • 9
  • 3
  • 4
TopValue
19
HiddenCells
  • {"r":1,"c":1,"v":7}
  • {"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): [26] → [11, 15] → [5, _, _]

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Answer: Row3[2]=6, Row3[3]=9

SubType
number-pyramid
Difficulty
expert
Levels
  • [26]
  • [11,15]
  • [5,6,9]
Base
  • 5
  • 6
  • 9
TopValue
26
HiddenCells
  • {"r":2,"c":1,"v":6}
  • {"r":2,"c":2,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [9, _] → [8, 1, 7]

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Answer: Row2[2]=8, Row1[1]=17

SubType
number-pyramid
Difficulty
expert
Levels
  • [17]
  • [9,8]
  • [8,1,7]
Base
  • 8
  • 1
  • 7
TopValue
17
HiddenCells
  • {"r":1,"c":1,"v":8}
  • {"r":0,"c":0,"v":17}