medium 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): [63] → [_, _] → [9, 17, _] → [_, 7, 10, 10]

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Answer: Row2[2]=37, Row2[1]=26, Row3[3]=20, Row4[1]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [63]
  • [26,37]
  • [9,17,20]
  • [2,7,10,10]
Base
  • 2
  • 7
  • 10
  • 10
TopValue
63
HiddenCells
  • {"r":1,"c":1,"v":37}
  • {"r":1,"c":0,"v":26}
  • {"r":2,"c":2,"v":20}
  • {"r":3,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [22] → [9, _] → [5, 4, 9] → [3, _, _, _]

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Answer: Row2[2]=13, Row4[3]=2, Row4[4]=7, Row4[2]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [22]
  • [9,13]
  • [5,4,9]
  • [3,2,2,7]
Base
  • 3
  • 2
  • 2
  • 7
TopValue
22
HiddenCells
  • {"r":1,"c":1,"v":13}
  • {"r":3,"c":2,"v":2}
  • {"r":3,"c":3,"v":7}
  • {"r":3,"c":1,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [45] → [20, _] → [_, _, 14] → [7, _, 9, 5]

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Answer: Row3[1]=9, Row3[2]=11, Row4[2]=2, Row2[2]=25

SubType
number-pyramid
Difficulty
medium
Levels
  • [45]
  • [20,25]
  • [9,11,14]
  • [7,2,9,5]
Base
  • 7
  • 2
  • 9
  • 5
TopValue
45
HiddenCells
  • {"r":2,"c":0,"v":9}
  • {"r":2,"c":1,"v":11}
  • {"r":3,"c":1,"v":2}
  • {"r":1,"c":1,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 23] → [11, 12, _] → [1, _, 2, 9]

Show answer

Answer: Row4[2]=10, Row3[3]=11, Row1[1]=46, Row2[1]=23

SubType
number-pyramid
Difficulty
medium
Levels
  • [46]
  • [23,23]
  • [11,12,11]
  • [1,10,2,9]
Base
  • 1
  • 10
  • 2
  • 9
TopValue
46
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":2,"c":2,"v":11}
  • {"r":0,"c":0,"v":46}
  • {"r":1,"c":0,"v":23}