hard Set 82 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [81] → [_, 43] → [21, _, 26] → [14, _, 10, _] → [_, _, _, 7, _]

Show answer

Answer: Row3[2]=17, Row5[2]=4, Row5[5]=9, Row5[3]=3, Row4[2]=7, Row2[1]=38, Row5[1]=10, Row4[4]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [81]
  • [38,43]
  • [21,17,26]
  • [14,7,10,16]
  • [10,4,3,7,9]
Base
  • 10
  • 4
  • 3
  • 7
  • 9
TopValue
81
HiddenCells
  • {"r":2,"c":1,"v":17}
  • {"r":4,"c":1,"v":4}
  • {"r":4,"c":4,"v":9}
  • {"r":4,"c":2,"v":3}
  • {"r":3,"c":1,"v":7}
  • {"r":1,"c":0,"v":38}
  • {"r":4,"c":0,"v":10}
  • {"r":3,"c":3,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [74] → [_, 46] → [10, _, 28] → [4, _, _, _] → [_, _, 3, 9, _]

Show answer

Answer: Row5[5]=7, Row2[1]=28, Row5[2]=3, Row4[3]=12, Row4[2]=6, Row5[1]=1, Row3[2]=18, Row4[4]=16

SubType
number-pyramid
Difficulty
hard
Levels
  • [74]
  • [28,46]
  • [10,18,28]
  • [4,6,12,16]
  • [1,3,3,9,7]
Base
  • 1
  • 3
  • 3
  • 9
  • 7
TopValue
74
HiddenCells
  • {"r":4,"c":4,"v":7}
  • {"r":1,"c":0,"v":28}
  • {"r":4,"c":1,"v":3}
  • {"r":3,"c":2,"v":12}
  • {"r":3,"c":1,"v":6}
  • {"r":4,"c":0,"v":1}
  • {"r":2,"c":1,"v":18}
  • {"r":3,"c":3,"v":16}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 55] → [30, _, _] → [_, _, 14, 14] → [8, 9, 4, _, _]

Show answer

Answer: Row4[1]=17, Row3[2]=27, Row5[4]=10, Row5[5]=4, Row4[2]=13, Row2[1]=57, Row3[3]=28, Row1[1]=112

SubType
number-pyramid
Difficulty
hard
Levels
  • [112]
  • [57,55]
  • [30,27,28]
  • [17,13,14,14]
  • [8,9,4,10,4]
Base
  • 8
  • 9
  • 4
  • 10
  • 4
TopValue
112
HiddenCells
  • {"r":3,"c":0,"v":17}
  • {"r":2,"c":1,"v":27}
  • {"r":4,"c":3,"v":10}
  • {"r":4,"c":4,"v":4}
  • {"r":3,"c":1,"v":13}
  • {"r":1,"c":0,"v":57}
  • {"r":2,"c":2,"v":28}
  • {"r":0,"c":0,"v":112}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [_, 34] → [10, 15, _] → [4, 6, 9, 10] → [_, _, _, _, _]

Show answer

Answer: Row1[1]=59, Row5[2]=3, Row2[1]=25, Row5[1]=1, Row5[4]=6, Row5[3]=3, Row5[5]=4, Row3[3]=19

SubType
number-pyramid
Difficulty
hard
Levels
  • [59]
  • [25,34]
  • [10,15,19]
  • [4,6,9,10]
  • [1,3,3,6,4]
Base
  • 1
  • 3
  • 3
  • 6
  • 4
TopValue
59
HiddenCells
  • {"r":0,"c":0,"v":59}
  • {"r":4,"c":1,"v":3}
  • {"r":1,"c":0,"v":25}
  • {"r":4,"c":0,"v":1}
  • {"r":4,"c":3,"v":6}
  • {"r":4,"c":2,"v":3}
  • {"r":4,"c":4,"v":4}
  • {"r":2,"c":2,"v":19}