medium Set 61 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [10, 13, 17] → [5, 5, 8, _]

Show answer

Answer: Row4[4]=9, Row2[1]=23, Row2[2]=30, Row1[1]=53

SubType
number-pyramid
Difficulty
medium
Levels
  • [53]
  • [23,30]
  • [10,13,17]
  • [5,5,8,9]
Base
  • 5
  • 5
  • 8
  • 9
TopValue
53
HiddenCells
  • {"r":3,"c":3,"v":9}
  • {"r":1,"c":0,"v":23}
  • {"r":1,"c":1,"v":30}
  • {"r":0,"c":0,"v":53}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [9, 14] → [3, 6, _] → [_, _, 4, 4]

Show answer

Answer: Row4[2]=2, Row1[1]=23, Row3[3]=8, Row4[1]=1

SubType
number-pyramid
Difficulty
medium
Levels
  • [23]
  • [9,14]
  • [3,6,8]
  • [1,2,4,4]
Base
  • 1
  • 2
  • 4
  • 4
TopValue
23
HiddenCells
  • {"r":3,"c":1,"v":2}
  • {"r":0,"c":0,"v":23}
  • {"r":2,"c":2,"v":8}
  • {"r":3,"c":0,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 13] → [_, _, 8] → [5, 2, 3, _]

Show answer

Answer: Row3[1]=7, Row1[1]=25, Row4[4]=5, Row3[2]=5

SubType
number-pyramid
Difficulty
medium
Levels
  • [25]
  • [12,13]
  • [7,5,8]
  • [5,2,3,5]
Base
  • 5
  • 2
  • 3
  • 5
TopValue
25
HiddenCells
  • {"r":2,"c":0,"v":7}
  • {"r":0,"c":0,"v":25}
  • {"r":3,"c":3,"v":5}
  • {"r":2,"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): [55] → [22, 33] → [_, 15, 18] → [_, 5, _, _]

Show answer

Answer: Row4[4]=8, Row3[1]=7, Row4[3]=10, Row4[1]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [55]
  • [22,33]
  • [7,15,18]
  • [2,5,10,8]
Base
  • 2
  • 5
  • 10
  • 8
TopValue
55
HiddenCells
  • {"r":3,"c":3,"v":8}
  • {"r":2,"c":0,"v":7}
  • {"r":3,"c":2,"v":10}
  • {"r":3,"c":0,"v":2}