hard Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [40, _] → [20, 20, _] → [_, 11, _, _] → [3, _, 5, 4, _]

Show answer

Answer: Row5[2]=6, Row4[3]=9, Row1[1]=83, Row5[5]=10, Row4[4]=14, Row2[2]=43, Row3[3]=23, Row4[1]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [83]
  • [40,43]
  • [20,20,23]
  • [9,11,9,14]
  • [3,6,5,4,10]
Base
  • 3
  • 6
  • 5
  • 4
  • 10
TopValue
83
HiddenCells
  • {"r":4,"c":1,"v":6}
  • {"r":3,"c":2,"v":9}
  • {"r":0,"c":0,"v":83}
  • {"r":4,"c":4,"v":10}
  • {"r":3,"c":3,"v":14}
  • {"r":1,"c":1,"v":43}
  • {"r":2,"c":2,"v":23}
  • {"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): [_] → [23, _] → [_, 11, _] → [_, 6, 5, 12] → [_, 4, 2, _, _]

Show answer

Answer: Row5[1]=2, Row4[1]=6, Row1[1]=51, Row3[3]=17, Row3[1]=12, Row2[2]=28, Row5[4]=3, Row5[5]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [51]
  • [23,28]
  • [12,11,17]
  • [6,6,5,12]
  • [2,4,2,3,9]
Base
  • 2
  • 4
  • 2
  • 3
  • 9
TopValue
51
HiddenCells
  • {"r":4,"c":0,"v":2}
  • {"r":3,"c":0,"v":6}
  • {"r":0,"c":0,"v":51}
  • {"r":2,"c":2,"v":17}
  • {"r":2,"c":0,"v":12}
  • {"r":1,"c":1,"v":28}
  • {"r":4,"c":3,"v":3}
  • {"r":4,"c":4,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [69] → [35, _] → [_, _, 19] → [12, 8, _, _] → [7, 5, _, _, _]

Show answer

Answer: Row3[2]=15, Row3[1]=20, Row5[4]=4, Row2[2]=34, Row5[3]=3, Row5[5]=8, Row4[3]=7, Row4[4]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [69]
  • [35,34]
  • [20,15,19]
  • [12,8,7,12]
  • [7,5,3,4,8]
Base
  • 7
  • 5
  • 3
  • 4
  • 8
TopValue
69
HiddenCells
  • {"r":2,"c":1,"v":15}
  • {"r":2,"c":0,"v":20}
  • {"r":4,"c":3,"v":4}
  • {"r":1,"c":1,"v":34}
  • {"r":4,"c":2,"v":3}
  • {"r":4,"c":4,"v":8}
  • {"r":3,"c":2,"v":7}
  • {"r":3,"c":3,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [57, _] → [_, 26, 31] → [18, _, 13, 18] → [_, _, _, _, 8]

Show answer

Answer: Row3[1]=31, Row1[1]=114, Row5[3]=3, Row5[4]=10, Row5[1]=8, Row4[2]=13, Row5[2]=10, Row2[2]=57

SubType
number-pyramid
Difficulty
hard
Levels
  • [114]
  • [57,57]
  • [31,26,31]
  • [18,13,13,18]
  • [8,10,3,10,8]
Base
  • 8
  • 10
  • 3
  • 10
  • 8
TopValue
114
HiddenCells
  • {"r":2,"c":0,"v":31}
  • {"r":0,"c":0,"v":114}
  • {"r":4,"c":2,"v":3}
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":0,"v":8}
  • {"r":3,"c":1,"v":13}
  • {"r":4,"c":1,"v":10}
  • {"r":1,"c":1,"v":57}