easy Set 51 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [25] → [15, _] → [9, _, 4]

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Answer: Row2[2]=10, Row3[2]=6

SubType
number-pyramid
Difficulty
easy
Levels
  • [25]
  • [15,10]
  • [9,6,4]
Base
  • 9
  • 6
  • 4
TopValue
25
HiddenCells
  • {"r":1,"c":1,"v":10}
  • {"r":2,"c":1,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 11] → [_, 5, 6]

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Answer: Row1[1]=23, Row3[1]=7

SubType
number-pyramid
Difficulty
easy
Levels
  • [23]
  • [12,11]
  • [7,5,6]
Base
  • 7
  • 5
  • 6
TopValue
23
HiddenCells
  • {"r":0,"c":0,"v":23}
  • {"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): [21] → [11, _] → [_, 8, 2]

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Answer: Row3[1]=3, Row2[2]=10

SubType
number-pyramid
Difficulty
easy
Levels
  • [21]
  • [11,10]
  • [3,8,2]
Base
  • 3
  • 8
  • 2
TopValue
21
HiddenCells
  • {"r":2,"c":0,"v":3}
  • {"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): [12] → [3, 9] → [_, _, 8]

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

SubType
number-pyramid
Difficulty
easy
Levels
  • [12]
  • [3,9]
  • [2,1,8]
Base
  • 2
  • 1
  • 8
TopValue
12
HiddenCells
  • {"r":2,"c":1,"v":1}
  • {"r":2,"c":0,"v":2}