hard Set 19 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [81] → [36, _] → [16, _, _] → [_, 9, 11, _] → [_, _, 6, 5, _]

Show answer

Answer: Row5[1]=4, Row2[2]=45, Row5[2]=3, Row5[5]=9, Row3[2]=20, Row4[1]=7, Row4[4]=14, Row3[3]=25

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [36,45]
  • [16,20,25]
  • [7,9,11,14]
  • [4,3,6,5,9]
Base
  • 4
  • 3
  • 6
  • 5
  • 9
TopValue
81
HiddenCells
  • {"r":4,"c":0,"v":4}
  • {"r":1,"c":1,"v":45}
  • {"r":4,"c":1,"v":3}
  • {"r":4,"c":4,"v":9}
  • {"r":2,"c":1,"v":20}
  • {"r":3,"c":0,"v":7}
  • {"r":3,"c":3,"v":14}
  • {"r":2,"c":2,"v":25}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [65] → [38, _] → [_, _, _] → [_, _, _, 4] → [2, 8, 3, 3, _]

Show answer

Answer: Row5[5]=1, Row3[1]=21, Row2[2]=27, Row4[2]=11, Row4[3]=6, Row4[1]=10, Row3[3]=10, Row3[2]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [65]
  • [38,27]
  • [21,17,10]
  • [10,11,6,4]
  • [2,8,3,3,1]
Base
  • 2
  • 8
  • 3
  • 3
  • 1
TopValue
65
HiddenCells
  • {"r":4,"c":4,"v":1}
  • {"r":2,"c":0,"v":21}
  • {"r":1,"c":1,"v":27}
  • {"r":3,"c":1,"v":11}
  • {"r":3,"c":2,"v":6}
  • {"r":3,"c":0,"v":10}
  • {"r":2,"c":2,"v":10}
  • {"r":2,"c":1,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 54] → [_, 23, 31] → [16, _, _, 18] → [_, 7, 3, _, _]

Show answer

Answer: Row4[2]=10, Row3[1]=26, Row5[4]=10, Row4[3]=13, Row5[1]=9, Row1[1]=103, Row5[5]=8, Row2[1]=49

SubType
number-pyramid
Difficulty
hard
Levels
  • [103]
  • [49,54]
  • [26,23,31]
  • [16,10,13,18]
  • [9,7,3,10,8]
Base
  • 9
  • 7
  • 3
  • 10
  • 8
TopValue
103
HiddenCells
  • {"r":3,"c":1,"v":10}
  • {"r":2,"c":0,"v":26}
  • {"r":4,"c":3,"v":10}
  • {"r":3,"c":2,"v":13}
  • {"r":4,"c":0,"v":9}
  • {"r":0,"c":0,"v":103}
  • {"r":4,"c":4,"v":8}
  • {"r":1,"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): [_] → [57, _] → [30, 27, 27] → [_, _, _, _] → [_, 9, _, 8, 6]

Show answer

Answer: Row4[2]=14, Row4[4]=14, Row2[2]=54, Row5[3]=5, Row4[3]=13, Row4[1]=16, Row5[1]=7, Row1[1]=111

SubType
number-pyramid
Difficulty
hard
Levels
  • [111]
  • [57,54]
  • [30,27,27]
  • [16,14,13,14]
  • [7,9,5,8,6]
Base
  • 7
  • 9
  • 5
  • 8
  • 6
TopValue
111
HiddenCells
  • {"r":3,"c":1,"v":14}
  • {"r":3,"c":3,"v":14}
  • {"r":1,"c":1,"v":54}
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":2,"v":13}
  • {"r":3,"c":0,"v":16}
  • {"r":4,"c":0,"v":7}
  • {"r":0,"c":0,"v":111}