hard Set 21 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [35, _] → [14, 21, _] → [_, _, _, 13] → [_, _, 5, 7, 6]

Show answer

Answer: Row4[3]=12, Row1[1]=81, Row3[3]=25, Row5[1]=1, Row5[2]=4, Row4[1]=5, Row4[2]=9, Row2[2]=46

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [35,46]
  • [14,21,25]
  • [5,9,12,13]
  • [1,4,5,7,6]
Base
  • 1
  • 4
  • 5
  • 7
  • 6
TopValue
81
HiddenCells
  • {"r":3,"c":2,"v":12}
  • {"r":0,"c":0,"v":81}
  • {"r":2,"c":2,"v":25}
  • {"r":4,"c":0,"v":1}
  • {"r":4,"c":1,"v":4}
  • {"r":3,"c":0,"v":5}
  • {"r":3,"c":1,"v":9}
  • {"r":1,"c":1,"v":46}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [25, _] → [13, 12, _] → [_, 5, 7, _] → [4, _, _, _, 10]

Show answer

Answer: Row1[1]=60, Row5[4]=6, Row5[3]=1, Row3[3]=23, Row2[2]=35, Row4[4]=16, Row4[1]=8, Row5[2]=4

SubType
number-pyramid
Difficulty
hard
Levels
  • [60]
  • [25,35]
  • [13,12,23]
  • [8,5,7,16]
  • [4,4,1,6,10]
Base
  • 4
  • 4
  • 1
  • 6
  • 10
TopValue
60
HiddenCells
  • {"r":0,"c":0,"v":60}
  • {"r":4,"c":3,"v":6}
  • {"r":4,"c":2,"v":1}
  • {"r":2,"c":2,"v":23}
  • {"r":1,"c":1,"v":35}
  • {"r":3,"c":3,"v":16}
  • {"r":3,"c":0,"v":8}
  • {"r":4,"c":1,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, _] → [18, 18, _] → [8, 10, 8, 7] → [_, _, _, _, 5]

Show answer

Answer: Row5[3]=6, Row3[3]=15, Row5[1]=4, Row2[2]=33, Row5[2]=4, Row1[1]=69, Row5[4]=2, Row2[1]=36

SubType
number-pyramid
Difficulty
hard
Levels
  • [69]
  • [36,33]
  • [18,18,15]
  • [8,10,8,7]
  • [4,4,6,2,5]
Base
  • 4
  • 4
  • 6
  • 2
  • 5
TopValue
69
HiddenCells
  • {"r":4,"c":2,"v":6}
  • {"r":2,"c":2,"v":15}
  • {"r":4,"c":0,"v":4}
  • {"r":1,"c":1,"v":33}
  • {"r":4,"c":1,"v":4}
  • {"r":0,"c":0,"v":69}
  • {"r":4,"c":3,"v":2}
  • {"r":1,"c":0,"v":36}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 40] → [_, 18, 22] → [_, _, _, 13] → [_, _, 1, 8, 5]

Show answer

Answer: Row4[2]=9, Row5[1]=4, Row1[1]=79, Row4[3]=9, Row5[2]=8, Row2[1]=39, Row3[1]=21, Row4[1]=12

SubType
number-pyramid
Difficulty
hard
Levels
  • [79]
  • [39,40]
  • [21,18,22]
  • [12,9,9,13]
  • [4,8,1,8,5]
Base
  • 4
  • 8
  • 1
  • 8
  • 5
TopValue
79
HiddenCells
  • {"r":3,"c":1,"v":9}
  • {"r":4,"c":0,"v":4}
  • {"r":0,"c":0,"v":79}
  • {"r":3,"c":2,"v":9}
  • {"r":4,"c":1,"v":8}
  • {"r":1,"c":0,"v":39}
  • {"r":2,"c":0,"v":21}
  • {"r":3,"c":0,"v":12}