medium Set 47 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [38] → [_, _] → [_, 7, 9] → [_, 6, 1, 8]

Show answer

Answer: Row2[1]=22, Row2[2]=16, Row3[1]=15, Row4[1]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [38]
  • [22,16]
  • [15,7,9]
  • [9,6,1,8]
Base
  • 9
  • 6
  • 1
  • 8
TopValue
38
HiddenCells
  • {"r":1,"c":0,"v":22}
  • {"r":1,"c":1,"v":16}
  • {"r":2,"c":0,"v":15}
  • {"r":3,"c":0,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [30, _] → [18, 12, 6] → [_, 8, 4, _]

Show answer

Answer: Row2[2]=18, Row1[1]=48, Row4[4]=2, Row4[1]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [48]
  • [30,18]
  • [18,12,6]
  • [10,8,4,2]
Base
  • 10
  • 8
  • 4
  • 2
TopValue
48
HiddenCells
  • {"r":1,"c":1,"v":18}
  • {"r":0,"c":0,"v":48}
  • {"r":3,"c":3,"v":2}
  • {"r":3,"c":0,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [8, 12] → [3, 5, _] → [_, _, _, 3]

Show answer

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

SubType
number-pyramid
Difficulty
medium
Levels
  • [20]
  • [8,12]
  • [3,5,7]
  • [2,1,4,3]
Base
  • 2
  • 1
  • 4
  • 3
TopValue
20
HiddenCells
  • {"r":3,"c":1,"v":1}
  • {"r":3,"c":0,"v":2}
  • {"r":3,"c":2,"v":4}
  • {"r":2,"c":2,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [63] → [31, 32] → [_, _, _] → [_, 7, 10, 5]

Show answer

Answer: Row3[3]=15, Row3[1]=14, Row3[2]=17, Row4[1]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [63]
  • [31,32]
  • [14,17,15]
  • [7,7,10,5]
Base
  • 7
  • 7
  • 10
  • 5
TopValue
63
HiddenCells
  • {"r":2,"c":2,"v":15}
  • {"r":2,"c":0,"v":14}
  • {"r":2,"c":1,"v":17}
  • {"r":3,"c":0,"v":7}