medium Set 99 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [53] → [_, _] → [12, _, _] → [5, 7, 6, 9]

Show answer

Answer: Row3[2]=13, Row2[1]=25, Row3[3]=15, Row2[2]=28

SubType
number-pyramid
Difficulty
medium
Levels
  • [53]
  • [25,28]
  • [12,13,15]
  • [5,7,6,9]
Base
  • 5
  • 7
  • 6
  • 9
TopValue
53
HiddenCells
  • {"r":2,"c":1,"v":13}
  • {"r":1,"c":0,"v":25}
  • {"r":2,"c":2,"v":15}
  • {"r":1,"c":1,"v":28}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [49] → [29, _] → [15, _, _] → [5, 10, _, 2]

Show answer

Answer: Row4[3]=4, Row3[2]=14, Row2[2]=20, Row3[3]=6

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [29,20]
  • [15,14,6]
  • [5,10,4,2]
Base
  • 5
  • 10
  • 4
  • 2
TopValue
49
HiddenCells
  • {"r":3,"c":2,"v":4}
  • {"r":2,"c":1,"v":14}
  • {"r":1,"c":1,"v":20}
  • {"r":2,"c":2,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [55] → [_, 27] → [15, 13, _] → [_, 7, 6, _]

Show answer

Answer: Row4[4]=8, Row4[1]=8, Row2[1]=28, Row3[3]=14

SubType
number-pyramid
Difficulty
medium
Levels
  • [55]
  • [28,27]
  • [15,13,14]
  • [8,7,6,8]
Base
  • 8
  • 7
  • 6
  • 8
TopValue
55
HiddenCells
  • {"r":3,"c":3,"v":8}
  • {"r":3,"c":0,"v":8}
  • {"r":1,"c":0,"v":28}
  • {"r":2,"c":2,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [35] → [19, _] → [12, 7, _] → [8, _, 3, _]

Show answer

Answer: Row3[3]=9, Row4[2]=4, Row4[4]=6, Row2[2]=16

SubType
number-pyramid
Difficulty
medium
Levels
  • [35]
  • [19,16]
  • [12,7,9]
  • [8,4,3,6]
Base
  • 8
  • 4
  • 3
  • 6
TopValue
35
HiddenCells
  • {"r":2,"c":2,"v":9}
  • {"r":3,"c":1,"v":4}
  • {"r":3,"c":3,"v":6}
  • {"r":1,"c":1,"v":16}