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): [_] → [24, _] → [_, 12, 11] → [2, 10, _, 9]

Show answer

Answer: Row4[3]=2, Row2[2]=23, Row1[1]=47, Row3[1]=12

SubType
number-pyramid
Difficulty
medium
Levels
  • [47]
  • [24,23]
  • [12,12,11]
  • [2,10,2,9]
Base
  • 2
  • 10
  • 2
  • 9
TopValue
47
HiddenCells
  • {"r":3,"c":2,"v":2}
  • {"r":1,"c":1,"v":23}
  • {"r":0,"c":0,"v":47}
  • {"r":2,"c":0,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [53] → [27, 26] → [_, _, 13] → [7, 7, _, _]

Show answer

Answer: Row4[3]=6, Row3[2]=13, Row3[1]=14, Row4[4]=7

SubType
number-pyramid
Difficulty
medium
Levels
  • [53]
  • [27,26]
  • [14,13,13]
  • [7,7,6,7]
Base
  • 7
  • 7
  • 6
  • 7
TopValue
53
HiddenCells
  • {"r":3,"c":2,"v":6}
  • {"r":2,"c":1,"v":13}
  • {"r":2,"c":0,"v":14}
  • {"r":3,"c":3,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [43] → [24, _] → [13, _, _] → [5, 8, 3, _]

Show answer

Answer: Row3[3]=8, Row3[2]=11, Row4[4]=5, Row2[2]=19

SubType
number-pyramid
Difficulty
medium
Levels
  • [43]
  • [24,19]
  • [13,11,8]
  • [5,8,3,5]
Base
  • 5
  • 8
  • 3
  • 5
TopValue
43
HiddenCells
  • {"r":2,"c":2,"v":8}
  • {"r":2,"c":1,"v":11}
  • {"r":3,"c":3,"v":5}
  • {"r":1,"c":1,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [45] → [_, 19] → [_, _, _] → [9, 6, 5, 3]

Show answer

Answer: Row3[2]=11, Row3[1]=15, Row2[1]=26, Row3[3]=8

SubType
number-pyramid
Difficulty
medium
Levels
  • [45]
  • [26,19]
  • [15,11,8]
  • [9,6,5,3]
Base
  • 9
  • 6
  • 5
  • 3
TopValue
45
HiddenCells
  • {"r":2,"c":1,"v":11}
  • {"r":2,"c":0,"v":15}
  • {"r":1,"c":0,"v":26}
  • {"r":2,"c":2,"v":8}