hard Set 35 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [39, _] → [21, 18, 15] → [_, 9, 9, _] → [_, 3, _, _, _]

Show answer

Answer: Row2[2]=33, Row5[3]=6, Row5[1]=9, Row5[5]=3, Row1[1]=72, Row4[4]=6, Row4[1]=12, Row5[4]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [72]
  • [39,33]
  • [21,18,15]
  • [12,9,9,6]
  • [9,3,6,3,3]
Base
  • 9
  • 3
  • 6
  • 3
  • 3
TopValue
72
HiddenCells
  • {"r":1,"c":1,"v":33}
  • {"r":4,"c":2,"v":6}
  • {"r":4,"c":0,"v":9}
  • {"r":4,"c":4,"v":3}
  • {"r":0,"c":0,"v":72}
  • {"r":3,"c":3,"v":6}
  • {"r":3,"c":0,"v":12}
  • {"r":4,"c":3,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [30, _, 14] → [15, 15, 9, 5] → [_, _, 8, _, _]

Show answer

Answer: Row5[1]=8, Row3[2]=24, Row2[2]=38, Row1[1]=92, Row5[5]=4, Row2[1]=54, Row5[2]=7, Row5[4]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [92]
  • [54,38]
  • [30,24,14]
  • [15,15,9,5]
  • [8,7,8,1,4]
Base
  • 8
  • 7
  • 8
  • 1
  • 4
TopValue
92
HiddenCells
  • {"r":4,"c":0,"v":8}
  • {"r":2,"c":1,"v":24}
  • {"r":1,"c":1,"v":38}
  • {"r":0,"c":0,"v":92}
  • {"r":4,"c":4,"v":4}
  • {"r":1,"c":0,"v":54}
  • {"r":4,"c":1,"v":7}
  • {"r":4,"c":3,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 67] → [22, _, _] → [10, _, 19, 17] → [7, _, 9, _, _]

Show answer

Answer: Row5[4]=10, Row2[1]=53, Row5[2]=3, Row3[2]=31, Row5[5]=7, Row3[3]=36, Row1[1]=120, Row4[2]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [120]
  • [53,67]
  • [22,31,36]
  • [10,12,19,17]
  • [7,3,9,10,7]
Base
  • 7
  • 3
  • 9
  • 10
  • 7
TopValue
120
HiddenCells
  • {"r":4,"c":3,"v":10}
  • {"r":1,"c":0,"v":53}
  • {"r":4,"c":1,"v":3}
  • {"r":2,"c":1,"v":31}
  • {"r":4,"c":4,"v":7}
  • {"r":2,"c":2,"v":36}
  • {"r":0,"c":0,"v":120}
  • {"r":3,"c":1,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, 7, _] → [7, 4, _, 10] → [4, 3, 1, _, _]

Show answer

Answer: Row3[3]=13, Row5[4]=2, Row1[1]=38, Row3[1]=11, Row5[5]=8, Row2[2]=20, Row4[3]=3, Row2[1]=18

SubType
number-pyramid
Difficulty
hard
Levels
  • [38]
  • [18,20]
  • [11,7,13]
  • [7,4,3,10]
  • [4,3,1,2,8]
Base
  • 4
  • 3
  • 1
  • 2
  • 8
TopValue
38
HiddenCells
  • {"r":2,"c":2,"v":13}
  • {"r":4,"c":3,"v":2}
  • {"r":0,"c":0,"v":38}
  • {"r":2,"c":0,"v":11}
  • {"r":4,"c":4,"v":8}
  • {"r":1,"c":1,"v":20}
  • {"r":3,"c":2,"v":3}
  • {"r":1,"c":0,"v":18}