medium Set 71 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [42] → [15, 27] → [_, _, _] → [3, _, 8, 9]

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Answer: Row3[3]=17, Row3[1]=5, Row3[2]=10, Row4[2]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [42]
  • [15,27]
  • [5,10,17]
  • [3,2,8,9]
Base
  • 3
  • 2
  • 8
  • 9
TopValue
42
HiddenCells
  • {"r":2,"c":2,"v":17}
  • {"r":2,"c":0,"v":5}
  • {"r":2,"c":1,"v":10}
  • {"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] → [_, 18] → [16, _, _] → [7, 9, 2, _]

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Answer: Row2[1]=27, Row3[3]=7, Row3[2]=11, Row4[4]=5

SubType
number-pyramid
Difficulty
medium
Levels
  • [45]
  • [27,18]
  • [16,11,7]
  • [7,9,2,5]
Base
  • 7
  • 9
  • 2
  • 5
TopValue
45
HiddenCells
  • {"r":1,"c":0,"v":27}
  • {"r":2,"c":2,"v":7}
  • {"r":2,"c":1,"v":11}
  • {"r":3,"c":3,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [57] → [_, 26] → [_, 13, _] → [8, _, 3, 10]

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Answer: Row4[2]=10, Row3[1]=18, Row3[3]=13, Row2[1]=31

SubType
number-pyramid
Difficulty
medium
Levels
  • [57]
  • [31,26]
  • [18,13,13]
  • [8,10,3,10]
Base
  • 8
  • 10
  • 3
  • 10
TopValue
57
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":2,"c":0,"v":18}
  • {"r":2,"c":2,"v":13}
  • {"r":1,"c":0,"v":31}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [39] → [12, 27] → [_, _, 17] → [_, _, 9, 8]

Show answer

Answer: Row3[1]=2, Row3[2]=10, Row4[2]=1, Row4[1]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [39]
  • [12,27]
  • [2,10,17]
  • [1,1,9,8]
Base
  • 1
  • 1
  • 9
  • 8
TopValue
39
HiddenCells
  • {"r":2,"c":0,"v":2}
  • {"r":2,"c":1,"v":10}
  • {"r":3,"c":1,"v":1}
  • {"r":3,"c":0,"v":1}