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): [_] → [30, _] → [13, _, 25] → [8, _, _, 13] → [5, _, 2, _, _]

Show answer

Answer: Row5[5]=3, Row5[2]=3, Row4[3]=12, Row1[1]=72, Row4[2]=5, Row3[2]=17, Row5[4]=10, Row2[2]=42

SubType
number-pyramid
Difficulty
hard
Levels
  • [72]
  • [30,42]
  • [13,17,25]
  • [8,5,12,13]
  • [5,3,2,10,3]
Base
  • 5
  • 3
  • 2
  • 10
  • 3
TopValue
72
HiddenCells
  • {"r":4,"c":4,"v":3}
  • {"r":4,"c":1,"v":3}
  • {"r":3,"c":2,"v":12}
  • {"r":0,"c":0,"v":72}
  • {"r":3,"c":1,"v":5}
  • {"r":2,"c":1,"v":17}
  • {"r":4,"c":3,"v":10}
  • {"r":1,"c":1,"v":42}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [23, 18, _] → [15, 8, _, 12] → [_, _, 1, 9, _]

Show answer

Answer: Row5[5]=3, Row4[3]=10, Row3[3]=22, Row1[1]=81, Row5[1]=8, Row2[2]=40, Row5[2]=7, Row2[1]=41

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [41,40]
  • [23,18,22]
  • [15,8,10,12]
  • [8,7,1,9,3]
Base
  • 8
  • 7
  • 1
  • 9
  • 3
TopValue
81
HiddenCells
  • {"r":4,"c":4,"v":3}
  • {"r":3,"c":2,"v":10}
  • {"r":2,"c":2,"v":22}
  • {"r":0,"c":0,"v":81}
  • {"r":4,"c":0,"v":8}
  • {"r":1,"c":1,"v":40}
  • {"r":4,"c":1,"v":7}
  • {"r":1,"c":0,"v":41}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [18, _, _] → [_, 9, 10, 13] → [3, _, 3, _, 6]

Show answer

Answer: Row4[1]=9, Row2[2]=42, Row2[1]=37, Row3[3]=23, Row5[4]=7, Row5[2]=6, Row3[2]=19, Row1[1]=79

SubType
number-pyramid
Difficulty
hard
Levels
  • [79]
  • [37,42]
  • [18,19,23]
  • [9,9,10,13]
  • [3,6,3,7,6]
Base
  • 3
  • 6
  • 3
  • 7
  • 6
TopValue
79
HiddenCells
  • {"r":3,"c":0,"v":9}
  • {"r":1,"c":1,"v":42}
  • {"r":1,"c":0,"v":37}
  • {"r":2,"c":2,"v":23}
  • {"r":4,"c":3,"v":7}
  • {"r":4,"c":1,"v":6}
  • {"r":2,"c":1,"v":19}
  • {"r":0,"c":0,"v":79}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [98] → [_, _] → [_, _, _] → [8, 16, _, _] → [2, _, 10, 1, 8]

Show answer

Answer: Row3[2]=27, Row2[2]=47, Row4[4]=9, Row2[1]=51, Row4[3]=11, Row3[3]=20, Row5[2]=6, Row3[1]=24

SubType
number-pyramid
Difficulty
hard
Levels
  • [98]
  • [51,47]
  • [24,27,20]
  • [8,16,11,9]
  • [2,6,10,1,8]
Base
  • 2
  • 6
  • 10
  • 1
  • 8
TopValue
98
HiddenCells
  • {"r":2,"c":1,"v":27}
  • {"r":1,"c":1,"v":47}
  • {"r":3,"c":3,"v":9}
  • {"r":1,"c":0,"v":51}
  • {"r":3,"c":2,"v":11}
  • {"r":2,"c":2,"v":20}
  • {"r":4,"c":1,"v":6}
  • {"r":2,"c":0,"v":24}