hard Set 88 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [22, 27] → [10, _, _] → [_, 5, _, _] → [_, 1, 4, _, 5]

Show answer

Answer: Row4[3]=7, Row5[4]=3, Row4[1]=5, Row5[1]=4, Row3[3]=15, Row4[4]=8, Row3[2]=12, Row1[1]=49

SubType
number-pyramid
Difficulty
hard
Levels
  • [49]
  • [22,27]
  • [10,12,15]
  • [5,5,7,8]
  • [4,1,4,3,5]
Base
  • 4
  • 1
  • 4
  • 3
  • 5
TopValue
49
HiddenCells
  • {"r":3,"c":2,"v":7}
  • {"r":4,"c":3,"v":3}
  • {"r":3,"c":0,"v":5}
  • {"r":4,"c":0,"v":4}
  • {"r":2,"c":2,"v":15}
  • {"r":3,"c":3,"v":8}
  • {"r":2,"c":1,"v":12}
  • {"r":0,"c":0,"v":49}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [83] → [_, _] → [_, _, _] → [8, 9, _, 12] → [3, 5, _, _, 4]

Show answer

Answer: Row5[3]=4, Row3[3]=24, Row4[3]=12, Row5[4]=8, Row2[1]=38, Row3[1]=17, Row3[2]=21, Row2[2]=45

SubType
number-pyramid
Difficulty
hard
Levels
  • [83]
  • [38,45]
  • [17,21,24]
  • [8,9,12,12]
  • [3,5,4,8,4]
Base
  • 3
  • 5
  • 4
  • 8
  • 4
TopValue
83
HiddenCells
  • {"r":4,"c":2,"v":4}
  • {"r":2,"c":2,"v":24}
  • {"r":3,"c":2,"v":12}
  • {"r":4,"c":3,"v":8}
  • {"r":1,"c":0,"v":38}
  • {"r":2,"c":0,"v":17}
  • {"r":2,"c":1,"v":21}
  • {"r":1,"c":1,"v":45}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [17, _] → [_, 8, 13] → [5, 4, _, 9] → [_, _, 3, _, _]

Show answer

Answer: Row5[1]=4, Row2[2]=21, Row5[2]=1, Row5[4]=1, Row4[3]=4, Row3[1]=9, Row5[5]=8, Row1[1]=38

SubType
number-pyramid
Difficulty
hard
Levels
  • [38]
  • [17,21]
  • [9,8,13]
  • [5,4,4,9]
  • [4,1,3,1,8]
Base
  • 4
  • 1
  • 3
  • 1
  • 8
TopValue
38
HiddenCells
  • {"r":4,"c":0,"v":4}
  • {"r":1,"c":1,"v":21}
  • {"r":4,"c":1,"v":1}
  • {"r":4,"c":3,"v":1}
  • {"r":3,"c":2,"v":4}
  • {"r":2,"c":0,"v":9}
  • {"r":4,"c":4,"v":8}
  • {"r":0,"c":0,"v":38}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [30, 31] → [15, _, 16] → [_, _, _, 8] → [_, _, 2, _, 2]

Show answer

Answer: Row4[2]=7, Row5[4]=6, Row5[2]=5, Row1[1]=61, Row3[2]=15, Row5[1]=3, Row4[3]=8, Row4[1]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [61]
  • [30,31]
  • [15,15,16]
  • [8,7,8,8]
  • [3,5,2,6,2]
Base
  • 3
  • 5
  • 2
  • 6
  • 2
TopValue
61
HiddenCells
  • {"r":3,"c":1,"v":7}
  • {"r":4,"c":3,"v":6}
  • {"r":4,"c":1,"v":5}
  • {"r":0,"c":0,"v":61}
  • {"r":2,"c":1,"v":15}
  • {"r":4,"c":0,"v":3}
  • {"r":3,"c":2,"v":8}
  • {"r":3,"c":0,"v":8}