hard Set 42 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [80] → [_, 50] → [11, 19, _] → [_, 6, 13, _] → [_, 2, _, _, _]

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Answer: Row4[4]=18, Row5[4]=9, Row4[1]=5, Row2[1]=30, Row5[5]=9, Row3[3]=31, Row5[1]=3, Row5[3]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [80]
  • [30,50]
  • [11,19,31]
  • [5,6,13,18]
  • [3,2,4,9,9]
Base
  • 3
  • 2
  • 4
  • 9
  • 9
TopValue
80
HiddenCells
  • {"r":3,"c":3,"v":18}
  • {"r":4,"c":3,"v":9}
  • {"r":3,"c":0,"v":5}
  • {"r":1,"c":0,"v":30}
  • {"r":4,"c":4,"v":9}
  • {"r":2,"c":2,"v":31}
  • {"r":4,"c":0,"v":3}
  • {"r":4,"c":2,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [46] → [_, _] → [_, _, 13] → [_, _, 6, 7] → [10, _, 1, _, 2]

Show answer

Answer: Row3[2]=9, Row5[4]=5, Row2[2]=22, Row4[2]=3, Row4[1]=12, Row3[1]=15, Row5[2]=2, Row2[1]=24

SubType
number-pyramid
Difficulty
hard
Levels
  • [46]
  • [24,22]
  • [15,9,13]
  • [12,3,6,7]
  • [10,2,1,5,2]
Base
  • 10
  • 2
  • 1
  • 5
  • 2
TopValue
46
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":4,"c":3,"v":5}
  • {"r":1,"c":1,"v":22}
  • {"r":3,"c":1,"v":3}
  • {"r":3,"c":0,"v":12}
  • {"r":2,"c":0,"v":15}
  • {"r":4,"c":1,"v":2}
  • {"r":1,"c":0,"v":24}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 53] → [_, 24, 29] → [_, 12, 12, _] → [_, 10, _, _, 7]

Show answer

Answer: Row3[1]=23, Row5[1]=1, Row5[3]=2, Row4[1]=11, Row2[1]=47, Row5[4]=10, Row4[4]=17, Row1[1]=100

SubType
number-pyramid
Difficulty
hard
Levels
  • [100]
  • [47,53]
  • [23,24,29]
  • [11,12,12,17]
  • [1,10,2,10,7]
Base
  • 1
  • 10
  • 2
  • 10
  • 7
TopValue
100
HiddenCells
  • {"r":2,"c":0,"v":23}
  • {"r":4,"c":0,"v":1}
  • {"r":4,"c":2,"v":2}
  • {"r":3,"c":0,"v":11}
  • {"r":1,"c":0,"v":47}
  • {"r":4,"c":3,"v":10}
  • {"r":3,"c":3,"v":17}
  • {"r":0,"c":0,"v":100}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [100] → [_, 58] → [17, _, 33] → [_, 10, _, 18] → [_, _, _, _, 9]

Show answer

Answer: Row4[1]=7, Row3[2]=25, Row5[4]=9, Row2[1]=42, Row5[1]=3, Row5[2]=4, Row5[3]=6, Row4[3]=15

SubType
number-pyramid
Difficulty
hard
Levels
  • [100]
  • [42,58]
  • [17,25,33]
  • [7,10,15,18]
  • [3,4,6,9,9]
Base
  • 3
  • 4
  • 6
  • 9
  • 9
TopValue
100
HiddenCells
  • {"r":3,"c":0,"v":7}
  • {"r":2,"c":1,"v":25}
  • {"r":4,"c":3,"v":9}
  • {"r":1,"c":0,"v":42}
  • {"r":4,"c":0,"v":3}
  • {"r":4,"c":1,"v":4}
  • {"r":4,"c":2,"v":6}
  • {"r":3,"c":2,"v":15}