hard 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): [_] → [52, _] → [_, 25, _] → [15, _, _, _] → [10, 5, _, 6, 5]

Show answer

Answer: Row5[3]=7, Row2[2]=49, Row3[1]=27, Row4[3]=13, Row4[4]=11, Row4[2]=12, Row1[1]=101, Row3[3]=24

SubType
number-pyramid
Difficulty
hard
Levels
  • [101]
  • [52,49]
  • [27,25,24]
  • [15,12,13,11]
  • [10,5,7,6,5]
Base
  • 10
  • 5
  • 7
  • 6
  • 5
TopValue
101
HiddenCells
  • {"r":4,"c":2,"v":7}
  • {"r":1,"c":1,"v":49}
  • {"r":2,"c":0,"v":27}
  • {"r":3,"c":2,"v":13}
  • {"r":3,"c":3,"v":11}
  • {"r":3,"c":1,"v":12}
  • {"r":0,"c":0,"v":101}
  • {"r":2,"c":2,"v":24}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [119] → [_, 58] → [28, _, 25] → [_, _, _, 10] → [_, 9, _, _, 4]

Show answer

Answer: Row4[2]=18, Row2[1]=61, Row5[4]=6, Row4[1]=10, Row3[2]=33, Row5[3]=9, Row5[1]=1, Row4[3]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [119]
  • [61,58]
  • [28,33,25]
  • [10,18,15,10]
  • [1,9,9,6,4]
Base
  • 1
  • 9
  • 9
  • 6
  • 4
TopValue
119
HiddenCells
  • {"r":3,"c":1,"v":18}
  • {"r":1,"c":0,"v":61}
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":0,"v":10}
  • {"r":2,"c":1,"v":33}
  • {"r":4,"c":2,"v":9}
  • {"r":4,"c":0,"v":1}
  • {"r":3,"c":2,"v":15}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [125] → [58, _] → [26, _, 35] → [_, _, 18, _] → [7, _, _, 9, _]

Show answer

Answer: Row5[3]=9, Row2[2]=67, Row4[4]=17, Row3[2]=32, Row5[5]=8, Row4[2]=14, Row5[2]=5, Row4[1]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [125]
  • [58,67]
  • [26,32,35]
  • [12,14,18,17]
  • [7,5,9,9,8]
Base
  • 7
  • 5
  • 9
  • 9
  • 8
TopValue
125
HiddenCells
  • {"r":4,"c":2,"v":9}
  • {"r":1,"c":1,"v":67}
  • {"r":3,"c":3,"v":17}
  • {"r":2,"c":1,"v":32}
  • {"r":4,"c":4,"v":8}
  • {"r":3,"c":1,"v":14}
  • {"r":4,"c":1,"v":5}
  • {"r":3,"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): [_] → [_, _] → [_, _, _] → [20, 12, 8, 14] → [10, _, _, 6, 8]

Show answer

Answer: Row5[3]=2, Row3[1]=32, Row3[3]=22, Row2[1]=52, Row3[2]=20, Row1[1]=94, Row5[2]=10, Row2[2]=42

SubType
number-pyramid
Difficulty
hard
Levels
  • [94]
  • [52,42]
  • [32,20,22]
  • [20,12,8,14]
  • [10,10,2,6,8]
Base
  • 10
  • 10
  • 2
  • 6
  • 8
TopValue
94
HiddenCells
  • {"r":4,"c":2,"v":2}
  • {"r":2,"c":0,"v":32}
  • {"r":2,"c":2,"v":22}
  • {"r":1,"c":0,"v":52}
  • {"r":2,"c":1,"v":20}
  • {"r":0,"c":0,"v":94}
  • {"r":4,"c":1,"v":10}
  • {"r":1,"c":1,"v":42}