hard Set 80 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [53] → [26, _] → [_, 11, _] → [_, 4, 7, 9] → [10, _, _, _, _]

Show answer

Answer: Row4[1]=11, Row5[3]=3, Row5[5]=5, Row3[1]=15, Row5[4]=4, Row2[2]=27, Row5[2]=1, Row3[3]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [53]
  • [26,27]
  • [15,11,16]
  • [11,4,7,9]
  • [10,1,3,4,5]
Base
  • 10
  • 1
  • 3
  • 4
  • 5
TopValue
53
HiddenCells
  • {"r":3,"c":0,"v":11}
  • {"r":4,"c":2,"v":3}
  • {"r":4,"c":4,"v":5}
  • {"r":2,"c":0,"v":15}
  • {"r":4,"c":3,"v":4}
  • {"r":1,"c":1,"v":27}
  • {"r":4,"c":1,"v":1}
  • {"r":2,"c":2,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [70] → [_, _] → [25, 17, 11] → [_, _, _, _] → [8, _, _, 1, 4]

Show answer

Answer: Row4[1]=14, Row4[4]=5, Row4[2]=11, Row2[2]=28, Row2[1]=42, Row5[3]=5, Row4[3]=6, Row5[2]=6

SubType
number-pyramid
Difficulty
hard
Levels
  • [70]
  • [42,28]
  • [25,17,11]
  • [14,11,6,5]
  • [8,6,5,1,4]
Base
  • 8
  • 6
  • 5
  • 1
  • 4
TopValue
70
HiddenCells
  • {"r":3,"c":0,"v":14}
  • {"r":3,"c":3,"v":5}
  • {"r":3,"c":1,"v":11}
  • {"r":1,"c":1,"v":28}
  • {"r":1,"c":0,"v":42}
  • {"r":4,"c":2,"v":5}
  • {"r":3,"c":2,"v":6}
  • {"r":4,"c":1,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 51] → [29, 26, _] → [_, 13, _, _] → [8, _, 5, _, 4]

Show answer

Answer: Row3[3]=25, Row2[1]=55, Row4[3]=13, Row5[4]=8, Row5[2]=8, Row4[1]=16, Row4[4]=12, Row1[1]=106

SubType
number-pyramid
Difficulty
hard
Levels
  • [106]
  • [55,51]
  • [29,26,25]
  • [16,13,13,12]
  • [8,8,5,8,4]
Base
  • 8
  • 8
  • 5
  • 8
  • 4
TopValue
106
HiddenCells
  • {"r":2,"c":2,"v":25}
  • {"r":1,"c":0,"v":55}
  • {"r":3,"c":2,"v":13}
  • {"r":4,"c":3,"v":8}
  • {"r":4,"c":1,"v":8}
  • {"r":3,"c":0,"v":16}
  • {"r":3,"c":3,"v":12}
  • {"r":0,"c":0,"v":106}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [68] → [_, _] → [_, 16, _] → [_, _, _, 7] → [_, 8, 3, 2, 5]

Show answer

Answer: Row2[1]=40, Row4[2]=11, Row5[1]=5, Row2[2]=28, Row3[3]=12, Row4[1]=13, Row4[3]=5, Row3[1]=24

SubType
number-pyramid
Difficulty
hard
Levels
  • [68]
  • [40,28]
  • [24,16,12]
  • [13,11,5,7]
  • [5,8,3,2,5]
Base
  • 5
  • 8
  • 3
  • 2
  • 5
TopValue
68
HiddenCells
  • {"r":1,"c":0,"v":40}
  • {"r":3,"c":1,"v":11}
  • {"r":4,"c":0,"v":5}
  • {"r":1,"c":1,"v":28}
  • {"r":2,"c":2,"v":12}
  • {"r":3,"c":0,"v":13}
  • {"r":3,"c":2,"v":5}
  • {"r":2,"c":0,"v":24}