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): [_] → [43, _] → [25, _, 20] → [15, 10, 8, _] → [_, _, _, 4, _]

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Answer: Row3[2]=18, Row2[2]=38, Row5[2]=6, Row5[5]=8, Row4[4]=12, Row1[1]=81, Row5[1]=9, Row5[3]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [43,38]
  • [25,18,20]
  • [15,10,8,12]
  • [9,6,4,4,8]
Base
  • 9
  • 6
  • 4
  • 4
  • 8
TopValue
81
HiddenCells
  • {"r":2,"c":1,"v":18}
  • {"r":1,"c":1,"v":38}
  • {"r":4,"c":1,"v":6}
  • {"r":4,"c":4,"v":8}
  • {"r":3,"c":3,"v":12}
  • {"r":0,"c":0,"v":81}
  • {"r":4,"c":0,"v":9}
  • {"r":4,"c":2,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [107] → [45, 62] → [_, 28, _] → [_, _, 17, 17] → [_, 4, _, _, _]

Show answer

Answer: Row4[2]=11, Row5[4]=10, Row3[1]=17, Row3[3]=34, Row5[1]=2, Row4[1]=6, Row5[3]=7, Row5[5]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [107]
  • [45,62]
  • [17,28,34]
  • [6,11,17,17]
  • [2,4,7,10,7]
Base
  • 2
  • 4
  • 7
  • 10
  • 7
TopValue
107
HiddenCells
  • {"r":3,"c":1,"v":11}
  • {"r":4,"c":3,"v":10}
  • {"r":2,"c":0,"v":17}
  • {"r":2,"c":2,"v":34}
  • {"r":4,"c":0,"v":2}
  • {"r":3,"c":0,"v":6}
  • {"r":4,"c":2,"v":7}
  • {"r":4,"c":4,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [42, 56] → [17, _, _] → [_, 9, _, 15] → [5, _, _, 10, _]

Show answer

Answer: Row4[3]=16, Row3[3]=31, Row1[1]=98, Row3[2]=25, Row5[3]=6, Row4[1]=8, Row5[2]=3, Row5[5]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [98]
  • [42,56]
  • [17,25,31]
  • [8,9,16,15]
  • [5,3,6,10,5]
Base
  • 5
  • 3
  • 6
  • 10
  • 5
TopValue
98
HiddenCells
  • {"r":3,"c":2,"v":16}
  • {"r":2,"c":2,"v":31}
  • {"r":0,"c":0,"v":98}
  • {"r":2,"c":1,"v":25}
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":0,"v":8}
  • {"r":4,"c":1,"v":3}
  • {"r":4,"c":4,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [114] → [_, 61] → [_, 30, 31] → [_, _, _, 15] → [_, 6, _, _, 7]

Show answer

Answer: Row5[1]=3, Row4[3]=16, Row5[4]=8, Row3[1]=23, Row2[1]=53, Row4[2]=14, Row5[3]=8, Row4[1]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [114]
  • [53,61]
  • [23,30,31]
  • [9,14,16,15]
  • [3,6,8,8,7]
Base
  • 3
  • 6
  • 8
  • 8
  • 7
TopValue
114
HiddenCells
  • {"r":4,"c":0,"v":3}
  • {"r":3,"c":2,"v":16}
  • {"r":4,"c":3,"v":8}
  • {"r":2,"c":0,"v":23}
  • {"r":1,"c":0,"v":53}
  • {"r":3,"c":1,"v":14}
  • {"r":4,"c":2,"v":8}
  • {"r":3,"c":0,"v":9}