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): [72] → [_, _] → [19, _, _] → [_, 7, _, 9] → [_, _, 3, 7, 2]

Show answer

Answer: Row2[1]=36, Row5[1]=8, Row5[2]=4, Row2[2]=36, Row3[2]=17, Row3[3]=19, Row4[1]=12, Row4[3]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [72]
  • [36,36]
  • [19,17,19]
  • [12,7,10,9]
  • [8,4,3,7,2]
Base
  • 8
  • 4
  • 3
  • 7
  • 2
TopValue
72
HiddenCells
  • {"r":1,"c":0,"v":36}
  • {"r":4,"c":0,"v":8}
  • {"r":4,"c":1,"v":4}
  • {"r":1,"c":1,"v":36}
  • {"r":2,"c":1,"v":17}
  • {"r":2,"c":2,"v":19}
  • {"r":3,"c":0,"v":12}
  • {"r":3,"c":2,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [81] → [_, _] → [23, _, _] → [10, _, 7, 11] → [_, 7, 6, _, _]

Show answer

Answer: Row4[2]=13, Row2[1]=43, Row2[2]=38, Row3[2]=20, Row3[3]=18, Row5[1]=3, Row5[4]=1, Row5[5]=10

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [43,38]
  • [23,20,18]
  • [10,13,7,11]
  • [3,7,6,1,10]
Base
  • 3
  • 7
  • 6
  • 1
  • 10
TopValue
81
HiddenCells
  • {"r":3,"c":1,"v":13}
  • {"r":1,"c":0,"v":43}
  • {"r":1,"c":1,"v":38}
  • {"r":2,"c":1,"v":20}
  • {"r":2,"c":2,"v":18}
  • {"r":4,"c":0,"v":3}
  • {"r":4,"c":3,"v":1}
  • {"r":4,"c":4,"v":10}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [124] → [_, _] → [27, _, _] → [_, 16, _, 17] → [3, 8, _, 8, _]

Show answer

Answer: Row2[2]=65, Row5[5]=9, Row2[1]=59, Row4[3]=16, Row3[2]=32, Row5[3]=8, Row3[3]=33, Row4[1]=11

SubType
number-pyramid
Difficulty
hard
Levels
  • [124]
  • [59,65]
  • [27,32,33]
  • [11,16,16,17]
  • [3,8,8,8,9]
Base
  • 3
  • 8
  • 8
  • 8
  • 9
TopValue
124
HiddenCells
  • {"r":1,"c":1,"v":65}
  • {"r":4,"c":4,"v":9}
  • {"r":1,"c":0,"v":59}
  • {"r":3,"c":2,"v":16}
  • {"r":2,"c":1,"v":32}
  • {"r":4,"c":2,"v":8}
  • {"r":2,"c":2,"v":33}
  • {"r":3,"c":0,"v":11}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [32, _] → [_, _, _] → [7, 9, 7, 9] → [3, _, 5, _, _]

Show answer

Answer: Row5[5]=7, Row5[2]=4, Row3[3]=16, Row3[1]=16, Row5[4]=2, Row2[2]=32, Row1[1]=64, Row3[2]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [64]
  • [32,32]
  • [16,16,16]
  • [7,9,7,9]
  • [3,4,5,2,7]
Base
  • 3
  • 4
  • 5
  • 2
  • 7
TopValue
64
HiddenCells
  • {"r":4,"c":4,"v":7}
  • {"r":4,"c":1,"v":4}
  • {"r":2,"c":2,"v":16}
  • {"r":2,"c":0,"v":16}
  • {"r":4,"c":3,"v":2}
  • {"r":1,"c":1,"v":32}
  • {"r":0,"c":0,"v":64}
  • {"r":2,"c":1,"v":16}