medium Set 15 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [46] → [21, _] → [9, 12, 13] → [_, _, 4, _]

Show answer

Answer: Row4[1]=1, Row4[4]=9, Row2[2]=25, Row4[2]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [46]
  • [21,25]
  • [9,12,13]
  • [1,8,4,9]
Base
  • 1
  • 8
  • 4
  • 9
TopValue
46
HiddenCells
  • {"r":3,"c":0,"v":1}
  • {"r":3,"c":3,"v":9}
  • {"r":1,"c":1,"v":25}
  • {"r":3,"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): [44] → [_, 26] → [6, 12, _] → [_, 3, 9, _]

Show answer

Answer: Row2[1]=18, Row3[3]=14, Row4[4]=5, Row4[1]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [44]
  • [18,26]
  • [6,12,14]
  • [3,3,9,5]
Base
  • 3
  • 3
  • 9
  • 5
TopValue
44
HiddenCells
  • {"r":1,"c":0,"v":18}
  • {"r":2,"c":2,"v":14}
  • {"r":3,"c":3,"v":5}
  • {"r":3,"c":0,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [49] → [28, _] → [15, _, 8] → [6, _, _, 4]

Show answer

Answer: Row3[2]=13, Row4[2]=9, Row2[2]=21, Row4[3]=4

SubType
number-pyramid
Difficulty
medium
Levels
  • [49]
  • [28,21]
  • [15,13,8]
  • [6,9,4,4]
Base
  • 6
  • 9
  • 4
  • 4
TopValue
49
HiddenCells
  • {"r":2,"c":1,"v":13}
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":1,"v":21}
  • {"r":3,"c":2,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [19, _] → [10, 9, 11] → [_, 7, 2, _]

Show answer

Answer: Row1[1]=39, Row4[4]=9, Row2[2]=20, Row4[1]=3

SubType
number-pyramid
Difficulty
medium
Levels
  • [39]
  • [19,20]
  • [10,9,11]
  • [3,7,2,9]
Base
  • 3
  • 7
  • 2
  • 9
TopValue
39
HiddenCells
  • {"r":0,"c":0,"v":39}
  • {"r":3,"c":3,"v":9}
  • {"r":1,"c":1,"v":20}
  • {"r":3,"c":0,"v":3}