hard Set 31 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [102] → [_, _] → [26, 23, _] → [15, 11, 12, _] → [_, _, _, _, 8]

Show answer

Answer: Row2[1]=49, Row5[2]=9, Row3[3]=30, Row5[1]=6, Row2[2]=53, Row5[4]=10, Row5[3]=2, Row4[4]=18

SubType
number-pyramid
Difficulty
hard
Levels
  • [102]
  • [49,53]
  • [26,23,30]
  • [15,11,12,18]
  • [6,9,2,10,8]
Base
  • 6
  • 9
  • 2
  • 10
  • 8
TopValue
102
HiddenCells
  • {"r":1,"c":0,"v":49}
  • {"r":4,"c":1,"v":9}
  • {"r":2,"c":2,"v":30}
  • {"r":4,"c":0,"v":6}
  • {"r":1,"c":1,"v":53}
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":2,"v":2}
  • {"r":3,"c":3,"v":18}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [49, 49] → [_, 25, _] → [11, _, _, _] → [8, 3, 10, _, _]

Show answer

Answer: Row3[1]=24, Row4[2]=13, Row1[1]=98, Row4[3]=12, Row5[4]=2, Row3[3]=24, Row5[5]=10, Row4[4]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [98]
  • [49,49]
  • [24,25,24]
  • [11,13,12,12]
  • [8,3,10,2,10]
Base
  • 8
  • 3
  • 10
  • 2
  • 10
TopValue
98
HiddenCells
  • {"r":2,"c":0,"v":24}
  • {"r":3,"c":1,"v":13}
  • {"r":0,"c":0,"v":98}
  • {"r":3,"c":2,"v":12}
  • {"r":4,"c":3,"v":2}
  • {"r":2,"c":2,"v":24}
  • {"r":4,"c":4,"v":10}
  • {"r":3,"c":3,"v":12}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 49] → [20, _, _] → [_, _, _, 10] → [4, 3, 10, _, 7]

Show answer

Answer: Row4[1]=7, Row3[3]=23, Row4[3]=13, Row4[2]=13, Row5[4]=3, Row2[1]=46, Row3[2]=26, Row1[1]=95

SubType
number-pyramid
Difficulty
hard
Levels
  • [95]
  • [46,49]
  • [20,26,23]
  • [7,13,13,10]
  • [4,3,10,3,7]
Base
  • 4
  • 3
  • 10
  • 3
  • 7
TopValue
95
HiddenCells
  • {"r":3,"c":0,"v":7}
  • {"r":2,"c":2,"v":23}
  • {"r":3,"c":2,"v":13}
  • {"r":3,"c":1,"v":13}
  • {"r":4,"c":3,"v":3}
  • {"r":1,"c":0,"v":46}
  • {"r":2,"c":1,"v":26}
  • {"r":0,"c":0,"v":95}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [82] → [_, 38] → [_, _, _] → [_, 12, _, _] → [4, 8, 4, _, 6]

Show answer

Answer: Row3[2]=20, Row2[1]=44, Row3[1]=24, Row4[1]=12, Row4[3]=8, Row4[4]=10, Row3[3]=18, Row5[4]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [82]
  • [44,38]
  • [24,20,18]
  • [12,12,8,10]
  • [4,8,4,4,6]
Base
  • 4
  • 8
  • 4
  • 4
  • 6
TopValue
82
HiddenCells
  • {"r":2,"c":1,"v":20}
  • {"r":1,"c":0,"v":44}
  • {"r":2,"c":0,"v":24}
  • {"r":3,"c":0,"v":12}
  • {"r":3,"c":2,"v":8}
  • {"r":3,"c":3,"v":10}
  • {"r":2,"c":2,"v":18}
  • {"r":4,"c":3,"v":4}