hard Set 11 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [138] → [_, _] → [_, 35, 31] → [18, _, _, 15] → [9, _, _, 6, _]

Show answer

Answer: Row5[2]=9, Row2[1]=72, Row5[3]=10, Row3[1]=37, Row4[3]=16, Row5[5]=9, Row4[2]=19, Row2[2]=66

SubType
number-pyramid
Difficulty
hard
Levels
  • [138]
  • [72,66]
  • [37,35,31]
  • [18,19,16,15]
  • [9,9,10,6,9]
Base
  • 9
  • 9
  • 10
  • 6
  • 9
TopValue
138
HiddenCells
  • {"r":4,"c":1,"v":9}
  • {"r":1,"c":0,"v":72}
  • {"r":4,"c":2,"v":10}
  • {"r":2,"c":0,"v":37}
  • {"r":3,"c":2,"v":16}
  • {"r":4,"c":4,"v":9}
  • {"r":3,"c":1,"v":19}
  • {"r":1,"c":1,"v":66}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [53] → [32, _] → [21, 11, _] → [14, 7, _, _] → [9, _, _, _, _]

Show answer

Answer: Row2[2]=21, Row5[3]=2, Row3[3]=10, Row4[3]=4, Row5[4]=2, Row5[2]=5, Row5[5]=4, Row4[4]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [53]
  • [32,21]
  • [21,11,10]
  • [14,7,4,6]
  • [9,5,2,2,4]
Base
  • 9
  • 5
  • 2
  • 2
  • 4
TopValue
53
HiddenCells
  • {"r":1,"c":1,"v":21}
  • {"r":4,"c":2,"v":2}
  • {"r":2,"c":2,"v":10}
  • {"r":3,"c":2,"v":4}
  • {"r":4,"c":3,"v":2}
  • {"r":4,"c":1,"v":5}
  • {"r":4,"c":4,"v":4}
  • {"r":3,"c":3,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [38, _] → [_, 17, 14] → [_, 11, _, _] → [_, 7, _, 2, 6]

Show answer

Answer: Row4[3]=6, Row5[3]=4, Row1[1]=69, Row5[1]=3, Row4[4]=8, Row2[2]=31, Row4[1]=10, Row3[1]=21

SubType
number-pyramid
Difficulty
hard
Levels
  • [69]
  • [38,31]
  • [21,17,14]
  • [10,11,6,8]
  • [3,7,4,2,6]
Base
  • 3
  • 7
  • 4
  • 2
  • 6
TopValue
69
HiddenCells
  • {"r":3,"c":2,"v":6}
  • {"r":4,"c":2,"v":4}
  • {"r":0,"c":0,"v":69}
  • {"r":4,"c":0,"v":3}
  • {"r":3,"c":3,"v":8}
  • {"r":1,"c":1,"v":31}
  • {"r":3,"c":0,"v":10}
  • {"r":2,"c":0,"v":21}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 24, 30] → [7, 9, _, _] → [4, 3, _, _, 6]

Show answer

Answer: Row1[1]=94, Row5[3]=6, Row2[1]=40, Row4[3]=15, Row3[1]=16, Row5[4]=9, Row4[4]=15, Row2[2]=54

SubType
number-pyramid
Difficulty
hard
Levels
  • [94]
  • [40,54]
  • [16,24,30]
  • [7,9,15,15]
  • [4,3,6,9,6]
Base
  • 4
  • 3
  • 6
  • 9
  • 6
TopValue
94
HiddenCells
  • {"r":0,"c":0,"v":94}
  • {"r":4,"c":2,"v":6}
  • {"r":1,"c":0,"v":40}
  • {"r":3,"c":2,"v":15}
  • {"r":2,"c":0,"v":16}
  • {"r":4,"c":3,"v":9}
  • {"r":3,"c":3,"v":15}
  • {"r":1,"c":1,"v":54}