hard Set 20 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [_, _, 33] → [_, 10, _, 15] → [4, _, 8, 10, 5]

Show answer

Answer: Row3[2]=28, Row1[1]=105, Row2[1]=44, Row5[2]=2, Row3[1]=16, Row4[1]=6, Row4[3]=18, Row2[2]=61

SubType
number-pyramid
Difficulty
hard
Levels
  • [105]
  • [44,61]
  • [16,28,33]
  • [6,10,18,15]
  • [4,2,8,10,5]
Base
  • 4
  • 2
  • 8
  • 10
  • 5
TopValue
105
HiddenCells
  • {"r":2,"c":1,"v":28}
  • {"r":0,"c":0,"v":105}
  • {"r":1,"c":0,"v":44}
  • {"r":4,"c":1,"v":2}
  • {"r":2,"c":0,"v":16}
  • {"r":3,"c":0,"v":6}
  • {"r":3,"c":2,"v":18}
  • {"r":1,"c":1,"v":61}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [63] → [_, _] → [22, _, _] → [_, 8, 5, 10] → [8, 6, _, _, _]

Show answer

Answer: Row5[3]=2, Row2[2]=28, Row5[4]=3, Row5[5]=7, Row2[1]=35, Row3[2]=13, Row3[3]=15, Row4[1]=14

SubType
number-pyramid
Difficulty
hard
Levels
  • [63]
  • [35,28]
  • [22,13,15]
  • [14,8,5,10]
  • [8,6,2,3,7]
Base
  • 8
  • 6
  • 2
  • 3
  • 7
TopValue
63
HiddenCells
  • {"r":4,"c":2,"v":2}
  • {"r":1,"c":1,"v":28}
  • {"r":4,"c":3,"v":3}
  • {"r":4,"c":4,"v":7}
  • {"r":1,"c":0,"v":35}
  • {"r":2,"c":1,"v":13}
  • {"r":2,"c":2,"v":15}
  • {"r":3,"c":0,"v":14}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [85] → [_, 42] → [_, _, _] → [5, 13, _, _] → [1, 4, _, _, 2]

Show answer

Answer: Row3[2]=25, Row4[3]=12, Row2[1]=43, Row3[3]=17, Row3[1]=18, Row5[3]=9, Row5[4]=3, Row4[4]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [85]
  • [43,42]
  • [18,25,17]
  • [5,13,12,5]
  • [1,4,9,3,2]
Base
  • 1
  • 4
  • 9
  • 3
  • 2
TopValue
85
HiddenCells
  • {"r":2,"c":1,"v":25}
  • {"r":3,"c":2,"v":12}
  • {"r":1,"c":0,"v":43}
  • {"r":2,"c":2,"v":17}
  • {"r":2,"c":0,"v":18}
  • {"r":4,"c":2,"v":9}
  • {"r":4,"c":3,"v":3}
  • {"r":3,"c":3,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 39] → [_, 22, _] → [_, 10, _, _] → [6, _, 8, 4, 1]

Show answer

Answer: Row3[1]=18, Row3[3]=17, Row4[1]=8, Row4[3]=12, Row4[4]=5, Row1[1]=79, Row5[2]=2, Row2[1]=40

SubType
number-pyramid
Difficulty
hard
Levels
  • [79]
  • [40,39]
  • [18,22,17]
  • [8,10,12,5]
  • [6,2,8,4,1]
Base
  • 6
  • 2
  • 8
  • 4
  • 1
TopValue
79
HiddenCells
  • {"r":2,"c":0,"v":18}
  • {"r":2,"c":2,"v":17}
  • {"r":3,"c":0,"v":8}
  • {"r":3,"c":2,"v":12}
  • {"r":3,"c":3,"v":5}
  • {"r":0,"c":0,"v":79}
  • {"r":4,"c":1,"v":2}
  • {"r":1,"c":0,"v":40}