medium Set 74 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [49] → [27, 22] → [12, 15, _] → [2, _, _, _]

Show answer

Answer: Row4[2]=10, Row3[3]=7, Row4[3]=5, Row4[4]=2

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [27,22]
  • [12,15,7]
  • [2,10,5,2]
Base
  • 2
  • 10
  • 5
  • 2
TopValue
49
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":2,"c":2,"v":7}
  • {"r":3,"c":2,"v":5}
  • {"r":3,"c":3,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [35] → [15, 20] → [7, _, _] → [6, _, _, 5]

Show answer

Answer: Row3[3]=12, Row4[2]=1, Row4[3]=7, Row3[2]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [35]
  • [15,20]
  • [7,8,12]
  • [6,1,7,5]
Base
  • 6
  • 1
  • 7
  • 5
TopValue
35
HiddenCells
  • {"r":2,"c":2,"v":12}
  • {"r":3,"c":1,"v":1}
  • {"r":3,"c":2,"v":7}
  • {"r":2,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 30] → [10, 15, 15] → [3, _, _, 7]

Show answer

Answer: Row1[1]=55, Row4[3]=8, Row4[2]=7, Row2[1]=25

SubType
number-pyramid
Difficulty
medium
Levels
  • [55]
  • [25,30]
  • [10,15,15]
  • [3,7,8,7]
Base
  • 3
  • 7
  • 8
  • 7
TopValue
55
HiddenCells
  • {"r":0,"c":0,"v":55}
  • {"r":3,"c":2,"v":8}
  • {"r":3,"c":1,"v":7}
  • {"r":1,"c":0,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [23] → [_, 7] → [_, _, 3] → [10, 2, 2, _]

Show answer

Answer: Row3[1]=12, Row4[4]=1, Row3[2]=4, Row2[1]=16

SubType
number-pyramid
Difficulty
medium
Levels
  • [23]
  • [16,7]
  • [12,4,3]
  • [10,2,2,1]
Base
  • 10
  • 2
  • 2
  • 1
TopValue
23
HiddenCells
  • {"r":2,"c":0,"v":12}
  • {"r":3,"c":3,"v":1}
  • {"r":2,"c":1,"v":4}
  • {"r":1,"c":0,"v":16}