hard Set 12 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [30, _] → [15, _, _] → [9, 6, 9, _] → [4, 5, _, _, _]

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Answer: Row5[3]=1, Row4[4]=18, Row1[1]=72, Row2[2]=42, Row3[2]=15, Row5[4]=8, Row5[5]=10, Row3[3]=27

SubType
number-pyramid
Difficulty
hard
Levels
  • [72]
  • [30,42]
  • [15,15,27]
  • [9,6,9,18]
  • [4,5,1,8,10]
Base
  • 4
  • 5
  • 1
  • 8
  • 10
TopValue
72
HiddenCells
  • {"r":4,"c":2,"v":1}
  • {"r":3,"c":3,"v":18}
  • {"r":0,"c":0,"v":72}
  • {"r":1,"c":1,"v":42}
  • {"r":2,"c":1,"v":15}
  • {"r":4,"c":3,"v":8}
  • {"r":4,"c":4,"v":10}
  • {"r":2,"c":2,"v":27}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 47] → [37, 30, _] → [_, _, _, 6] → [9, _, _, 1, 5]

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Answer: Row2[1]=67, Row3[3]=17, Row4[2]=19, Row1[1]=114, Row5[3]=10, Row4[1]=18, Row4[3]=11, Row5[2]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [114]
  • [67,47]
  • [37,30,17]
  • [18,19,11,6]
  • [9,9,10,1,5]
Base
  • 9
  • 9
  • 10
  • 1
  • 5
TopValue
114
HiddenCells
  • {"r":1,"c":0,"v":67}
  • {"r":2,"c":2,"v":17}
  • {"r":3,"c":1,"v":19}
  • {"r":0,"c":0,"v":114}
  • {"r":4,"c":2,"v":10}
  • {"r":3,"c":0,"v":18}
  • {"r":3,"c":2,"v":11}
  • {"r":4,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [61] → [34, 27] → [20, _, 13] → [_, _, _, 7] → [6, _, _, _, _]

Show answer

Answer: Row4[2]=8, Row5[2]=6, Row3[2]=14, Row5[5]=3, Row5[4]=4, Row5[3]=2, Row4[1]=12, Row4[3]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [61]
  • [34,27]
  • [20,14,13]
  • [12,8,6,7]
  • [6,6,2,4,3]
Base
  • 6
  • 6
  • 2
  • 4
  • 3
TopValue
61
HiddenCells
  • {"r":3,"c":1,"v":8}
  • {"r":4,"c":1,"v":6}
  • {"r":2,"c":1,"v":14}
  • {"r":4,"c":4,"v":3}
  • {"r":4,"c":3,"v":4}
  • {"r":4,"c":2,"v":2}
  • {"r":3,"c":0,"v":12}
  • {"r":3,"c":2,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 30] → [_, _, _] → [_, 3, 7, _] → [_, 2, 1, 6, 7]

Show answer

Answer: Row4[1]=3, Row2[1]=16, Row3[2]=10, Row5[1]=1, Row3[3]=20, Row3[1]=6, Row1[1]=46, Row4[4]=13

SubType
number-pyramid
Difficulty
hard
Levels
  • [46]
  • [16,30]
  • [6,10,20]
  • [3,3,7,13]
  • [1,2,1,6,7]
Base
  • 1
  • 2
  • 1
  • 6
  • 7
TopValue
46
HiddenCells
  • {"r":3,"c":0,"v":3}
  • {"r":1,"c":0,"v":16}
  • {"r":2,"c":1,"v":10}
  • {"r":4,"c":0,"v":1}
  • {"r":2,"c":2,"v":20}
  • {"r":2,"c":0,"v":6}
  • {"r":0,"c":0,"v":46}
  • {"r":3,"c":3,"v":13}