medium Set 20 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [56] → [_, 30] → [13, 13, _] → [_, 4, 9, _]

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Answer: Row2[1]=26, Row4[4]=8, Row3[3]=17, Row4[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [56]
  • [26,30]
  • [13,13,17]
  • [9,4,9,8]
Base
  • 9
  • 4
  • 9
  • 8
TopValue
56
HiddenCells
  • {"r":1,"c":0,"v":26}
  • {"r":3,"c":3,"v":8}
  • {"r":2,"c":2,"v":17}
  • {"r":3,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [29, _] → [17, _, 13] → [_, 9, 3, 10]

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Answer: Row2[2]=25, Row1[1]=54, Row4[1]=8, Row3[2]=12

SubType
number-pyramid
Difficulty
medium
Levels
  • [54]
  • [29,25]
  • [17,12,13]
  • [8,9,3,10]
Base
  • 8
  • 9
  • 3
  • 10
TopValue
54
HiddenCells
  • {"r":1,"c":1,"v":25}
  • {"r":0,"c":0,"v":54}
  • {"r":3,"c":0,"v":8}
  • {"r":2,"c":1,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [49] → [19, _] → [7, _, 18] → [4, _, 9, _]

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Answer: Row2[2]=30, Row4[2]=3, Row4[4]=9, Row3[2]=12

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [19,30]
  • [7,12,18]
  • [4,3,9,9]
Base
  • 4
  • 3
  • 9
  • 9
TopValue
49
HiddenCells
  • {"r":1,"c":1,"v":30}
  • {"r":3,"c":1,"v":3}
  • {"r":3,"c":3,"v":9}
  • {"r":2,"c":1,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [7, 10] → [_, 4, 6] → [_, 1, _, 3]

Show answer

Answer: Row1[1]=17, Row4[1]=2, Row4[3]=3, Row3[1]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [17]
  • [7,10]
  • [3,4,6]
  • [2,1,3,3]
Base
  • 2
  • 1
  • 3
  • 3
TopValue
17
HiddenCells
  • {"r":0,"c":0,"v":17}
  • {"r":3,"c":0,"v":2}
  • {"r":3,"c":2,"v":3}
  • {"r":2,"c":0,"v":3}