hard Set 28 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [62, _] → [31, 31, 21] → [13, _, 13, _] → [_, 8, _, _, _]

Show answer

Answer: Row1[1]=114, Row4[4]=8, Row5[1]=5, Row5[3]=10, Row2[2]=52, Row4[2]=18, Row5[5]=5, Row5[4]=3

SubType
number-pyramid
Difficulty
hard
Levels
  • [114]
  • [62,52]
  • [31,31,21]
  • [13,18,13,8]
  • [5,8,10,3,5]
Base
  • 5
  • 8
  • 10
  • 3
  • 5
TopValue
114
HiddenCells
  • {"r":0,"c":0,"v":114}
  • {"r":3,"c":3,"v":8}
  • {"r":4,"c":0,"v":5}
  • {"r":4,"c":2,"v":10}
  • {"r":1,"c":1,"v":52}
  • {"r":3,"c":1,"v":18}
  • {"r":4,"c":4,"v":5}
  • {"r":4,"c":3,"v":3}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [20, _] → [8, _, 23] → [4, _, _, 15] → [_, 2, _, _, 9]

Show answer

Answer: Row4[2]=4, Row4[3]=8, Row3[2]=12, Row2[2]=35, Row5[4]=6, Row5[1]=2, Row1[1]=55, Row5[3]=2

SubType
number-pyramid
Difficulty
hard
Levels
  • [55]
  • [20,35]
  • [8,12,23]
  • [4,4,8,15]
  • [2,2,2,6,9]
Base
  • 2
  • 2
  • 2
  • 6
  • 9
TopValue
55
HiddenCells
  • {"r":3,"c":1,"v":4}
  • {"r":3,"c":2,"v":8}
  • {"r":2,"c":1,"v":12}
  • {"r":1,"c":1,"v":35}
  • {"r":4,"c":3,"v":6}
  • {"r":4,"c":0,"v":2}
  • {"r":0,"c":0,"v":55}
  • {"r":4,"c":2,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [80] → [31, _] → [_, _, 30] → [_, 6, 13, _] → [3, 3, _, _, _]

Show answer

Answer: Row5[3]=3, Row5[5]=7, Row3[2]=19, Row4[1]=6, Row5[4]=10, Row2[2]=49, Row3[1]=12, Row4[4]=17

SubType
number-pyramid
Difficulty
hard
Levels
  • [80]
  • [31,49]
  • [12,19,30]
  • [6,6,13,17]
  • [3,3,3,10,7]
Base
  • 3
  • 3
  • 3
  • 10
  • 7
TopValue
80
HiddenCells
  • {"r":4,"c":2,"v":3}
  • {"r":4,"c":4,"v":7}
  • {"r":2,"c":1,"v":19}
  • {"r":3,"c":0,"v":6}
  • {"r":4,"c":3,"v":10}
  • {"r":1,"c":1,"v":49}
  • {"r":2,"c":0,"v":12}
  • {"r":3,"c":3,"v":17}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [98] → [_, _] → [_, 24, _] → [11, 10, 14, _] → [6, 5, _, _, _]

Show answer

Answer: Row5[5]=6, Row2[2]=53, Row3[3]=29, Row5[3]=5, Row5[4]=9, Row4[4]=15, Row2[1]=45, Row3[1]=21

SubType
number-pyramid
Difficulty
hard
Levels
  • [98]
  • [45,53]
  • [21,24,29]
  • [11,10,14,15]
  • [6,5,5,9,6]
Base
  • 6
  • 5
  • 5
  • 9
  • 6
TopValue
98
HiddenCells
  • {"r":4,"c":4,"v":6}
  • {"r":1,"c":1,"v":53}
  • {"r":2,"c":2,"v":29}
  • {"r":4,"c":2,"v":5}
  • {"r":4,"c":3,"v":9}
  • {"r":3,"c":3,"v":15}
  • {"r":1,"c":0,"v":45}
  • {"r":2,"c":0,"v":21}