easy Set 91 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [17] → [_, 5] → [9, _, 2]

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Answer: Row3[2]=3, Row2[1]=12

SubType
number-pyramid
Difficulty
easy
Levels
  • [17]
  • [12,5]
  • [9,3,2]
Base
  • 9
  • 3
  • 2
TopValue
17
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":1,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [15, 10] → [_, 6, 4]

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Answer: Row3[1]=9, Row1[1]=25

SubType
number-pyramid
Difficulty
easy
Levels
  • [25]
  • [15,10]
  • [9,6,4]
Base
  • 9
  • 6
  • 4
TopValue
25
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":0,"c":0,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [13, 8] → [7, 6, _]

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Answer: Row3[3]=2, Row1[1]=21

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

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [13] → [7, 6] → [_, 2, _]

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Answer: Row3[1]=5, Row3[3]=4

SubType
number-pyramid
Difficulty
easy
Levels
  • [13]
  • [7,6]
  • [5,2,4]
Base
  • 5
  • 2
  • 4
TopValue
13
HiddenCells
  • {"r":2,"c":0,"v":5}
  • {"r":2,"c":2,"v":4}