hard Set 52 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [90] → [55, 35] → [_, _, _] → [_, 14, _, _] → [_, 10, 4, 4, _]

Show answer

Answer: Row3[3]=13, Row4[1]=19, Row4[4]=5, Row4[3]=8, Row5[5]=1, Row3[2]=22, Row5[1]=9, Row3[1]=33

SubType
number-pyramid
Difficulty
hard
Levels
  • [90]
  • [55,35]
  • [33,22,13]
  • [19,14,8,5]
  • [9,10,4,4,1]
Base
  • 9
  • 10
  • 4
  • 4
  • 1
TopValue
90
HiddenCells
  • {"r":2,"c":2,"v":13}
  • {"r":3,"c":0,"v":19}
  • {"r":3,"c":3,"v":5}
  • {"r":3,"c":2,"v":8}
  • {"r":4,"c":4,"v":1}
  • {"r":2,"c":1,"v":22}
  • {"r":4,"c":0,"v":9}
  • {"r":2,"c":0,"v":33}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [101] → [43, 58] → [_, _, 33] → [_, _, _, 16] → [_, 1, 7, _, _]

Show answer

Answer: Row4[1]=10, Row5[5]=6, Row5[4]=10, Row5[1]=9, Row3[1]=18, Row4[2]=8, Row3[2]=25, Row4[3]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [101]
  • [43,58]
  • [18,25,33]
  • [10,8,17,16]
  • [9,1,7,10,6]
Base
  • 9
  • 1
  • 7
  • 10
  • 6
TopValue
101
HiddenCells
  • {"r":3,"c":0,"v":10}
  • {"r":4,"c":4,"v":6}
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":0,"v":9}
  • {"r":2,"c":0,"v":18}
  • {"r":3,"c":1,"v":8}
  • {"r":2,"c":1,"v":25}
  • {"r":3,"c":2,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [45, 53] → [18, 27, _] → [_, _, _, _] → [5, _, _, 7, 3]

Show answer

Answer: Row4[3]=16, Row5[2]=2, Row4[1]=7, Row5[3]=9, Row4[2]=11, Row1[1]=98, Row4[4]=10, Row3[3]=26

SubType
number-pyramid
Difficulty
hard
Levels
  • [98]
  • [45,53]
  • [18,27,26]
  • [7,11,16,10]
  • [5,2,9,7,3]
Base
  • 5
  • 2
  • 9
  • 7
  • 3
TopValue
98
HiddenCells
  • {"r":3,"c":2,"v":16}
  • {"r":4,"c":1,"v":2}
  • {"r":3,"c":0,"v":7}
  • {"r":4,"c":2,"v":9}
  • {"r":3,"c":1,"v":11}
  • {"r":0,"c":0,"v":98}
  • {"r":3,"c":3,"v":10}
  • {"r":2,"c":2,"v":26}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [113] → [56, 57] → [27, _, _] → [_, _, _, _] → [8, _, 9, _, 7]

Show answer

Answer: Row4[4]=13, Row4[3]=15, Row5[4]=6, Row5[2]=5, Row4[2]=14, Row3[2]=29, Row4[1]=13, Row3[3]=28

SubType
number-pyramid
Difficulty
hard
Levels
  • [113]
  • [56,57]
  • [27,29,28]
  • [13,14,15,13]
  • [8,5,9,6,7]
Base
  • 8
  • 5
  • 9
  • 6
  • 7
TopValue
113
HiddenCells
  • {"r":3,"c":3,"v":13}
  • {"r":3,"c":2,"v":15}
  • {"r":4,"c":3,"v":6}
  • {"r":4,"c":1,"v":5}
  • {"r":3,"c":1,"v":14}
  • {"r":2,"c":1,"v":29}
  • {"r":3,"c":0,"v":13}
  • {"r":2,"c":2,"v":28}