hard Set 17 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [33, _] → [20, _, 21] → [13, _, 6, 15] → [_, _, 1, _, _]

Show answer

Answer: Row5[2]=6, Row3[2]=13, Row5[5]=10, Row5[4]=5, Row4[2]=7, Row1[1]=67, Row5[1]=7, Row2[2]=34

SubType
number-pyramid
Difficulty
hard
Levels
  • [67]
  • [33,34]
  • [20,13,21]
  • [13,7,6,15]
  • [7,6,1,5,10]
Base
  • 7
  • 6
  • 1
  • 5
  • 10
TopValue
67
HiddenCells
  • {"r":4,"c":1,"v":6}
  • {"r":2,"c":1,"v":13}
  • {"r":4,"c":4,"v":10}
  • {"r":4,"c":3,"v":5}
  • {"r":3,"c":1,"v":7}
  • {"r":0,"c":0,"v":67}
  • {"r":4,"c":0,"v":7}
  • {"r":1,"c":1,"v":34}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [50] → [_, 25] → [_, 11, _] → [9, _, _, 8] → [_, 1, _, 2, _]

Show answer

Answer: Row5[5]=6, Row4[3]=6, Row3[3]=14, Row5[3]=4, Row5[1]=8, Row3[1]=14, Row2[1]=25, Row4[2]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [50]
  • [25,25]
  • [14,11,14]
  • [9,5,6,8]
  • [8,1,4,2,6]
Base
  • 8
  • 1
  • 4
  • 2
  • 6
TopValue
50
HiddenCells
  • {"r":4,"c":4,"v":6}
  • {"r":3,"c":2,"v":6}
  • {"r":2,"c":2,"v":14}
  • {"r":4,"c":2,"v":4}
  • {"r":4,"c":0,"v":8}
  • {"r":2,"c":0,"v":14}
  • {"r":1,"c":0,"v":25}
  • {"r":3,"c":1,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 31] → [_, 11, 20] → [5, _, 8, _] → [_, _, _, 6, 6]

Show answer

Answer: Row5[1]=4, Row3[1]=8, Row1[1]=50, Row5[3]=2, Row5[2]=1, Row4[4]=12, Row2[1]=19, Row4[2]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [50]
  • [19,31]
  • [8,11,20]
  • [5,3,8,12]
  • [4,1,2,6,6]
Base
  • 4
  • 1
  • 2
  • 6
  • 6
TopValue
50
HiddenCells
  • {"r":4,"c":0,"v":4}
  • {"r":2,"c":0,"v":8}
  • {"r":0,"c":0,"v":50}
  • {"r":4,"c":2,"v":2}
  • {"r":4,"c":1,"v":1}
  • {"r":3,"c":3,"v":12}
  • {"r":1,"c":0,"v":19}
  • {"r":3,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 19, 29] → [_, _, 10, 19] → [6, _, 1, _, 10]

Show answer

Answer: Row5[2]=8, Row5[4]=9, Row4[2]=9, Row3[1]=23, Row4[1]=14, Row2[1]=42, Row2[2]=48, Row1[1]=90

SubType
number-pyramid
Difficulty
hard
Levels
  • [90]
  • [42,48]
  • [23,19,29]
  • [14,9,10,19]
  • [6,8,1,9,10]
Base
  • 6
  • 8
  • 1
  • 9
  • 10
TopValue
90
HiddenCells
  • {"r":4,"c":1,"v":8}
  • {"r":4,"c":3,"v":9}
  • {"r":3,"c":1,"v":9}
  • {"r":2,"c":0,"v":23}
  • {"r":3,"c":0,"v":14}
  • {"r":1,"c":0,"v":42}
  • {"r":1,"c":1,"v":48}
  • {"r":0,"c":0,"v":90}