medium Set 25 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, 24] → [3, _, 15] → [2, 1, _, _]

Show answer

Answer: Row4[3]=8, Row4[4]=7, Row1[1]=36, Row3[2]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [36]
  • [12,24]
  • [3,9,15]
  • [2,1,8,7]
Base
  • 2
  • 1
  • 8
  • 7
TopValue
36
HiddenCells
  • {"r":3,"c":2,"v":8}
  • {"r":3,"c":3,"v":7}
  • {"r":0,"c":0,"v":36}
  • {"r":2,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [36] → [_, _] → [10, 9, 8] → [2, _, _, 7]

Show answer

Answer: Row2[2]=17, Row4[3]=1, Row4[2]=8, Row2[1]=19

SubType
number-pyramid
Difficulty
medium
Levels
  • [36]
  • [19,17]
  • [10,9,8]
  • [2,8,1,7]
Base
  • 2
  • 8
  • 1
  • 7
TopValue
36
HiddenCells
  • {"r":1,"c":1,"v":17}
  • {"r":3,"c":2,"v":1}
  • {"r":3,"c":1,"v":8}
  • {"r":1,"c":0,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [38, 38] → [19, 19, 19] → [_, _, _, 9]

Show answer

Answer: Row1[1]=76, Row4[3]=10, Row4[2]=9, Row4[1]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [76]
  • [38,38]
  • [19,19,19]
  • [10,9,10,9]
Base
  • 10
  • 9
  • 10
  • 9
TopValue
76
HiddenCells
  • {"r":0,"c":0,"v":76}
  • {"r":3,"c":2,"v":10}
  • {"r":3,"c":1,"v":9}
  • {"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): [_] → [24, 24] → [11, 13, 11] → [8, _, _, _]

Show answer

Answer: Row4[3]=10, Row1[1]=48, Row4[4]=1, Row4[2]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [48]
  • [24,24]
  • [11,13,11]
  • [8,3,10,1]
Base
  • 8
  • 3
  • 10
  • 1
TopValue
48
HiddenCells
  • {"r":3,"c":2,"v":10}
  • {"r":0,"c":0,"v":48}
  • {"r":3,"c":3,"v":1}
  • {"r":3,"c":1,"v":3}