medium Set 23 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [26, 25] → [_, 13, _] → [_, 4, 9, 3]

Show answer

Answer: Row3[3]=12, Row1[1]=51, Row4[1]=9, Row3[1]=13

SubType
number-pyramid
Difficulty
medium
Levels
  • [51]
  • [26,25]
  • [13,13,12]
  • [9,4,9,3]
Base
  • 9
  • 4
  • 9
  • 3
TopValue
51
HiddenCells
  • {"r":2,"c":2,"v":12}
  • {"r":0,"c":0,"v":51}
  • {"r":3,"c":0,"v":9}
  • {"r":2,"c":0,"v":13}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [30, 34] → [_, _, _] → [1, 10, 9, 6]

Show answer

Answer: Row3[3]=15, Row3[2]=19, Row3[1]=11, Row1[1]=64

SubType
number-pyramid
Difficulty
medium
Levels
  • [64]
  • [30,34]
  • [11,19,15]
  • [1,10,9,6]
Base
  • 1
  • 10
  • 9
  • 6
TopValue
64
HiddenCells
  • {"r":2,"c":2,"v":15}
  • {"r":2,"c":1,"v":19}
  • {"r":2,"c":0,"v":11}
  • {"r":0,"c":0,"v":64}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [31, 21] → [17, 14, 7] → [_, _, _, 3]

Show answer

Answer: Row4[1]=7, Row4[3]=4, Row1[1]=52, Row4[2]=10

SubType
number-pyramid
Difficulty
medium
Levels
  • [52]
  • [31,21]
  • [17,14,7]
  • [7,10,4,3]
Base
  • 7
  • 10
  • 4
  • 3
TopValue
52
HiddenCells
  • {"r":3,"c":0,"v":7}
  • {"r":3,"c":2,"v":4}
  • {"r":0,"c":0,"v":52}
  • {"r":3,"c":1,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [53] → [_, 25] → [14, 14, _] → [5, _, _, 6]

Show answer

Answer: Row3[3]=11, Row4[3]=5, Row2[1]=28, Row4[2]=9

SubType
number-pyramid
Difficulty
medium
Levels
  • [53]
  • [28,25]
  • [14,14,11]
  • [5,9,5,6]
Base
  • 5
  • 9
  • 5
  • 6
TopValue
53
HiddenCells
  • {"r":2,"c":2,"v":11}
  • {"r":3,"c":2,"v":5}
  • {"r":1,"c":0,"v":28}
  • {"r":3,"c":1,"v":9}