hard Set 78 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [79] → [_, _] → [_, _, _] → [_, 8, 10, _] → [10, _, 5, 5, 7]

Show answer

Answer: Row2[1]=39, Row3[3]=22, Row4[4]=12, Row2[2]=40, Row4[1]=13, Row3[1]=21, Row3[2]=18, Row5[2]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [79]
  • [39,40]
  • [21,18,22]
  • [13,8,10,12]
  • [10,3,5,5,7]
Base
  • 10
  • 3
  • 5
  • 5
  • 7
TopValue
79
HiddenCells
  • {"r":1,"c":0,"v":39}
  • {"r":2,"c":2,"v":22}
  • {"r":3,"c":3,"v":12}
  • {"r":1,"c":1,"v":40}
  • {"r":3,"c":0,"v":13}
  • {"r":2,"c":0,"v":21}
  • {"r":2,"c":1,"v":18}
  • {"r":4,"c":1,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 20] → [_, 15, 5] → [19, _, _, _] → [9, _, 2, 1, _]

Show answer

Answer: Row3[1]=31, Row4[3]=3, Row4[4]=2, Row4[2]=12, Row2[1]=46, Row1[1]=66, Row5[2]=10, Row5[5]=1

SubType
number-pyramid
Difficulty
hard
Levels
  • [66]
  • [46,20]
  • [31,15,5]
  • [19,12,3,2]
  • [9,10,2,1,1]
Base
  • 9
  • 10
  • 2
  • 1
  • 1
TopValue
66
HiddenCells
  • {"r":2,"c":0,"v":31}
  • {"r":3,"c":2,"v":3}
  • {"r":3,"c":3,"v":2}
  • {"r":3,"c":1,"v":12}
  • {"r":1,"c":0,"v":46}
  • {"r":0,"c":0,"v":66}
  • {"r":4,"c":1,"v":10}
  • {"r":4,"c":4,"v":1}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [63] → [35, 28] → [19, 16, _] → [_, _, 8, _] → [8, _, _, _, _]

Show answer

Answer: Row5[4]=3, Row5[5]=1, Row4[4]=4, Row3[3]=12, Row5[2]=3, Row5[3]=5, Row4[1]=11, Row4[2]=8

SubType
number-pyramid
Difficulty
hard
Levels
  • [63]
  • [35,28]
  • [19,16,12]
  • [11,8,8,4]
  • [8,3,5,3,1]
Base
  • 8
  • 3
  • 5
  • 3
  • 1
TopValue
63
HiddenCells
  • {"r":4,"c":3,"v":3}
  • {"r":4,"c":4,"v":1}
  • {"r":3,"c":3,"v":4}
  • {"r":2,"c":2,"v":12}
  • {"r":4,"c":1,"v":3}
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":0,"v":11}
  • {"r":3,"c":1,"v":8}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [18, _] → [_, _, _] → [_, _, 3, 2] → [_, 1, 2, 1, 1]

Show answer

Answer: Row1[1]=29, Row3[2]=6, Row4[2]=3, Row4[1]=9, Row5[1]=8, Row3[3]=5, Row3[1]=12, Row2[2]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [29]
  • [18,11]
  • [12,6,5]
  • [9,3,3,2]
  • [8,1,2,1,1]
Base
  • 8
  • 1
  • 2
  • 1
  • 1
TopValue
29
HiddenCells
  • {"r":0,"c":0,"v":29}
  • {"r":2,"c":1,"v":6}
  • {"r":3,"c":1,"v":3}
  • {"r":3,"c":0,"v":9}
  • {"r":4,"c":0,"v":8}
  • {"r":2,"c":2,"v":5}
  • {"r":2,"c":0,"v":12}
  • {"r":1,"c":1,"v":11}