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): [_] → [_, _] → [22, _, 25] → [_, _, 9, _] → [2, 9, 2, _, 9]

Show answer

Answer: Row5[4]=7, Row4[4]=16, Row4[1]=11, Row3[2]=20, Row2[1]=42, Row4[2]=11, Row2[2]=45, Row1[1]=87

SubType
number-pyramid
Difficulty
hard
Levels
  • [87]
  • [42,45]
  • [22,20,25]
  • [11,11,9,16]
  • [2,9,2,7,9]
Base
  • 2
  • 9
  • 2
  • 7
  • 9
TopValue
87
HiddenCells
  • {"r":4,"c":3,"v":7}
  • {"r":3,"c":3,"v":16}
  • {"r":3,"c":0,"v":11}
  • {"r":2,"c":1,"v":20}
  • {"r":1,"c":0,"v":42}
  • {"r":3,"c":1,"v":11}
  • {"r":1,"c":1,"v":45}
  • {"r":0,"c":0,"v":87}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [41, 53] → [14, _, 26] → [_, _, _, 10] → [_, 1, _, _, 4]

Show answer

Answer: Row5[4]=6, Row4[1]=3, Row5[1]=2, Row5[3]=10, Row3[2]=27, Row4[2]=11, Row1[1]=94, Row4[3]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [94]
  • [41,53]
  • [14,27,26]
  • [3,11,16,10]
  • [2,1,10,6,4]
Base
  • 2
  • 1
  • 10
  • 6
  • 4
TopValue
94
HiddenCells
  • {"r":4,"c":3,"v":6}
  • {"r":3,"c":0,"v":3}
  • {"r":4,"c":0,"v":2}
  • {"r":4,"c":2,"v":10}
  • {"r":2,"c":1,"v":27}
  • {"r":3,"c":1,"v":11}
  • {"r":0,"c":0,"v":94}
  • {"r":3,"c":2,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [102] → [53, _] → [_, 26, _] → [13, _, _, 11] → [_, 5, 9, _, _]

Show answer

Answer: Row5[5]=8, Row4[3]=12, Row4[2]=14, Row3[1]=27, Row2[2]=49, Row5[4]=3, Row5[1]=8, Row3[3]=23

SubType
number-pyramid
Difficulty
hard
Levels
  • [102]
  • [53,49]
  • [27,26,23]
  • [13,14,12,11]
  • [8,5,9,3,8]
Base
  • 8
  • 5
  • 9
  • 3
  • 8
TopValue
102
HiddenCells
  • {"r":4,"c":4,"v":8}
  • {"r":3,"c":2,"v":12}
  • {"r":3,"c":1,"v":14}
  • {"r":2,"c":0,"v":27}
  • {"r":1,"c":1,"v":49}
  • {"r":4,"c":3,"v":3}
  • {"r":4,"c":0,"v":8}
  • {"r":2,"c":2,"v":23}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [44, 52] → [_, _, 31] → [15, _, 13, _] → [_, _, 3, 10, _]

Show answer

Answer: Row3[2]=21, Row4[2]=8, Row3[1]=23, Row4[4]=18, Row5[5]=8, Row5[2]=5, Row5[1]=10, Row1[1]=96

SubType
number-pyramid
Difficulty
hard
Levels
  • [96]
  • [44,52]
  • [23,21,31]
  • [15,8,13,18]
  • [10,5,3,10,8]
Base
  • 10
  • 5
  • 3
  • 10
  • 8
TopValue
96
HiddenCells
  • {"r":2,"c":1,"v":21}
  • {"r":3,"c":1,"v":8}
  • {"r":2,"c":0,"v":23}
  • {"r":3,"c":3,"v":18}
  • {"r":4,"c":4,"v":8}
  • {"r":4,"c":1,"v":5}
  • {"r":4,"c":0,"v":10}
  • {"r":0,"c":0,"v":96}