hard Set 40 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [30, 33] → [15, _, _] → [9, 6, _, _] → [_, _, 1, _, 1]

Show answer

Answer: Row5[4]=8, Row3[3]=18, Row4[3]=9, Row4[4]=9, Row5[1]=4, Row1[1]=63, Row5[2]=5, Row3[2]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [63]
  • [30,33]
  • [15,15,18]
  • [9,6,9,9]
  • [4,5,1,8,1]
Base
  • 4
  • 5
  • 1
  • 8
  • 1
TopValue
63
HiddenCells
  • {"r":4,"c":3,"v":8}
  • {"r":2,"c":2,"v":18}
  • {"r":3,"c":2,"v":9}
  • {"r":3,"c":3,"v":9}
  • {"r":4,"c":0,"v":4}
  • {"r":0,"c":0,"v":63}
  • {"r":4,"c":1,"v":5}
  • {"r":2,"c":1,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [33, _] → [18, _, _] → [13, 5, _, _] → [10, 3, 2, _, _]

Show answer

Answer: Row3[3]=23, Row4[3]=10, Row5[5]=5, Row5[4]=8, Row1[1]=71, Row3[2]=15, Row4[4]=13, Row2[2]=38

SubType
number-pyramid
Difficulty
hard
Levels
  • [71]
  • [33,38]
  • [18,15,23]
  • [13,5,10,13]
  • [10,3,2,8,5]
Base
  • 10
  • 3
  • 2
  • 8
  • 5
TopValue
71
HiddenCells
  • {"r":2,"c":2,"v":23}
  • {"r":3,"c":2,"v":10}
  • {"r":4,"c":4,"v":5}
  • {"r":4,"c":3,"v":8}
  • {"r":0,"c":0,"v":71}
  • {"r":2,"c":1,"v":15}
  • {"r":3,"c":3,"v":13}
  • {"r":1,"c":1,"v":38}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 30] → [12, 11, 19] → [_, 2, _, _] → [_, _, 1, _, 2]

Show answer

Answer: Row5[2]=1, Row5[1]=9, Row2[1]=23, Row4[1]=10, Row4[3]=9, Row5[4]=8, Row1[1]=53, Row4[4]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [53]
  • [23,30]
  • [12,11,19]
  • [10,2,9,10]
  • [9,1,1,8,2]
Base
  • 9
  • 1
  • 1
  • 8
  • 2
TopValue
53
HiddenCells
  • {"r":4,"c":1,"v":1}
  • {"r":4,"c":0,"v":9}
  • {"r":1,"c":0,"v":23}
  • {"r":3,"c":0,"v":10}
  • {"r":3,"c":2,"v":9}
  • {"r":4,"c":3,"v":8}
  • {"r":0,"c":0,"v":53}
  • {"r":3,"c":3,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [87] → [_, 46] → [18, _, 23] → [8, _, 13, 10] → [_, _, _, _, _]

Show answer

Answer: Row2[1]=41, Row3[2]=23, Row5[3]=5, Row5[1]=3, Row5[4]=8, Row5[2]=5, Row4[2]=10, Row5[5]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [87]
  • [41,46]
  • [18,23,23]
  • [8,10,13,10]
  • [3,5,5,8,2]
Base
  • 3
  • 5
  • 5
  • 8
  • 2
TopValue
87
HiddenCells
  • {"r":1,"c":0,"v":41}
  • {"r":2,"c":1,"v":23}
  • {"r":4,"c":2,"v":5}
  • {"r":4,"c":0,"v":3}
  • {"r":4,"c":3,"v":8}
  • {"r":4,"c":1,"v":5}
  • {"r":3,"c":1,"v":10}
  • {"r":4,"c":4,"v":2}