hard Set 80 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 30, 23] → [_, 14, 16, _] → [4, _, 10, 6, _]

Show answer

Answer: Row3[1]=22, Row4[1]=8, Row5[2]=4, Row2[1]=52, Row4[4]=7, Row2[2]=53, Row1[1]=105, Row5[5]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [105]
  • [52,53]
  • [22,30,23]
  • [8,14,16,7]
  • [4,4,10,6,1]
Base
  • 4
  • 4
  • 10
  • 6
  • 1
TopValue
105
HiddenCells
  • {"r":2,"c":0,"v":22}
  • {"r":3,"c":0,"v":8}
  • {"r":4,"c":1,"v":4}
  • {"r":1,"c":0,"v":52}
  • {"r":3,"c":3,"v":7}
  • {"r":1,"c":1,"v":53}
  • {"r":0,"c":0,"v":105}
  • {"r":4,"c":4,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [102] → [_, 49] → [_, 25, 24] → [_, 12, _, 11] → [7, _, _, _, _]

Show answer

Answer: Row4[3]=13, Row5[5]=1, Row2[1]=53, Row3[1]=28, Row4[1]=16, Row5[4]=10, Row5[3]=3, Row5[2]=9

SubType
number-pyramid
Difficulty
hard
Levels
  • [102]
  • [53,49]
  • [28,25,24]
  • [16,12,13,11]
  • [7,9,3,10,1]
Base
  • 7
  • 9
  • 3
  • 10
  • 1
TopValue
102
HiddenCells
  • {"r":3,"c":2,"v":13}
  • {"r":4,"c":4,"v":1}
  • {"r":1,"c":0,"v":53}
  • {"r":2,"c":0,"v":28}
  • {"r":3,"c":0,"v":16}
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":2,"v":3}
  • {"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): [_] → [_, _] → [_, _, 18] → [10, 8, _, 13] → [4, 6, _, _, 10]

Show answer

Answer: Row2[1]=31, Row4[3]=5, Row3[2]=13, Row5[4]=3, Row1[1]=62, Row2[2]=31, Row5[3]=2, Row3[1]=18

SubType
number-pyramid
Difficulty
hard
Levels
  • [62]
  • [31,31]
  • [18,13,18]
  • [10,8,5,13]
  • [4,6,2,3,10]
Base
  • 4
  • 6
  • 2
  • 3
  • 10
TopValue
62
HiddenCells
  • {"r":1,"c":0,"v":31}
  • {"r":3,"c":2,"v":5}
  • {"r":2,"c":1,"v":13}
  • {"r":4,"c":3,"v":3}
  • {"r":0,"c":0,"v":62}
  • {"r":1,"c":1,"v":31}
  • {"r":4,"c":2,"v":2}
  • {"r":2,"c":0,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [81] → [45, 36] → [23, _, _] → [_, 12, 10, _] → [_, _, _, _, 2]

Show answer

Answer: Row3[3]=14, Row3[2]=22, Row5[3]=8, Row5[2]=4, Row5[1]=7, Row5[4]=2, Row4[1]=11, Row4[4]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [45,36]
  • [23,22,14]
  • [11,12,10,4]
  • [7,4,8,2,2]
Base
  • 7
  • 4
  • 8
  • 2
  • 2
TopValue
81
HiddenCells
  • {"r":2,"c":2,"v":14}
  • {"r":2,"c":1,"v":22}
  • {"r":4,"c":2,"v":8}
  • {"r":4,"c":1,"v":4}
  • {"r":4,"c":0,"v":7}
  • {"r":4,"c":3,"v":2}
  • {"r":3,"c":0,"v":11}
  • {"r":3,"c":3,"v":4}