medium Set 21 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [51] → [25, _] → [12, 13, _] → [_, _, 3, 10]

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Answer: Row4[2]=10, Row4[1]=2, Row3[3]=13, Row2[2]=26

SubType
number-pyramid
Difficulty
medium
Levels
  • [51]
  • [25,26]
  • [12,13,13]
  • [2,10,3,10]
Base
  • 2
  • 10
  • 3
  • 10
TopValue
51
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":3,"c":0,"v":2}
  • {"r":2,"c":2,"v":13}
  • {"r":1,"c":1,"v":26}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [50] → [_, 25] → [12, 13, 12] → [_, 3, _, _]

Show answer

Answer: Row4[1]=9, Row4[3]=10, Row4[4]=2, Row2[1]=25

SubType
number-pyramid
Difficulty
medium
Levels
  • [50]
  • [25,25]
  • [12,13,12]
  • [9,3,10,2]
Base
  • 9
  • 3
  • 10
  • 2
TopValue
50
HiddenCells
  • {"r":3,"c":0,"v":9}
  • {"r":3,"c":2,"v":10}
  • {"r":3,"c":3,"v":2}
  • {"r":1,"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): [48] → [30, _] → [19, 11, _] → [10, _, 2, _]

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Answer: Row4[2]=9, Row2[2]=18, Row4[4]=5, Row3[3]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [48]
  • [30,18]
  • [19,11,7]
  • [10,9,2,5]
Base
  • 10
  • 9
  • 2
  • 5
TopValue
48
HiddenCells
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":1,"v":18}
  • {"r":3,"c":3,"v":5}
  • {"r":2,"c":2,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [4, 4] → [2, 2, _] → [_, 1, 1, _]

Show answer

Answer: Row4[4]=1, Row1[1]=8, Row4[1]=1, Row3[3]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [8]
  • [4,4]
  • [2,2,2]
  • [1,1,1,1]
Base
  • 1
  • 1
  • 1
  • 1
TopValue
8
HiddenCells
  • {"r":3,"c":3,"v":1}
  • {"r":0,"c":0,"v":8}
  • {"r":3,"c":0,"v":1}
  • {"r":2,"c":2,"v":2}