hard Set 81 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [93] → [_, 45] → [_, 21, 24] → [16, _, _, _] → [_, 10, 1, _, _]

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Answer: Row4[4]=14, Row4[2]=11, Row4[3]=10, Row5[4]=9, Row3[1]=27, Row2[1]=48, Row5[1]=6, Row5[5]=5

SubType
number-pyramid
Difficulty
hard
Levels
  • [93]
  • [48,45]
  • [27,21,24]
  • [16,11,10,14]
  • [6,10,1,9,5]
Base
  • 6
  • 10
  • 1
  • 9
  • 5
TopValue
93
HiddenCells
  • {"r":3,"c":3,"v":14}
  • {"r":3,"c":1,"v":11}
  • {"r":3,"c":2,"v":10}
  • {"r":4,"c":3,"v":9}
  • {"r":2,"c":0,"v":27}
  • {"r":1,"c":0,"v":48}
  • {"r":4,"c":0,"v":6}
  • {"r":4,"c":4,"v":5}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [71] → [37, 34] → [_, _, _] → [13, _, _, 13] → [_, 6, _, 3, _]

Show answer

Answer: Row3[1]=22, Row4[2]=9, Row3[3]=19, Row3[2]=15, Row4[3]=6, Row5[5]=10, Row5[3]=3, Row5[1]=7

SubType
number-pyramid
Difficulty
hard
Levels
  • [71]
  • [37,34]
  • [22,15,19]
  • [13,9,6,13]
  • [7,6,3,3,10]
Base
  • 7
  • 6
  • 3
  • 3
  • 10
TopValue
71
HiddenCells
  • {"r":2,"c":0,"v":22}
  • {"r":3,"c":1,"v":9}
  • {"r":2,"c":2,"v":19}
  • {"r":2,"c":1,"v":15}
  • {"r":3,"c":2,"v":6}
  • {"r":4,"c":4,"v":10}
  • {"r":4,"c":2,"v":3}
  • {"r":4,"c":0,"v":7}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [27, _] → [_, _, _] → [9, _, 2, 10] → [2, _, 1, _, 9]

Show answer

Answer: Row4[2]=8, Row3[3]=12, Row5[4]=1, Row1[1]=49, Row3[2]=10, Row3[1]=17, Row5[2]=7, Row2[2]=22

SubType
number-pyramid
Difficulty
hard
Levels
  • [49]
  • [27,22]
  • [17,10,12]
  • [9,8,2,10]
  • [2,7,1,1,9]
Base
  • 2
  • 7
  • 1
  • 1
  • 9
TopValue
49
HiddenCells
  • {"r":3,"c":1,"v":8}
  • {"r":2,"c":2,"v":12}
  • {"r":4,"c":3,"v":1}
  • {"r":0,"c":0,"v":49}
  • {"r":2,"c":1,"v":10}
  • {"r":2,"c":0,"v":17}
  • {"r":4,"c":1,"v":7}
  • {"r":1,"c":1,"v":22}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [100] → [57, _] → [_, _, 18] → [_, 17, _, _] → [5, 10, _, _, 9]

Show answer

Answer: Row5[4]=1, Row3[1]=32, Row4[1]=15, Row4[4]=10, Row2[2]=43, Row5[3]=7, Row4[3]=8, Row3[2]=25

SubType
number-pyramid
Difficulty
hard
Levels
  • [100]
  • [57,43]
  • [32,25,18]
  • [15,17,8,10]
  • [5,10,7,1,9]
Base
  • 5
  • 10
  • 7
  • 1
  • 9
TopValue
100
HiddenCells
  • {"r":4,"c":3,"v":1}
  • {"r":2,"c":0,"v":32}
  • {"r":3,"c":0,"v":15}
  • {"r":3,"c":3,"v":10}
  • {"r":1,"c":1,"v":43}
  • {"r":4,"c":2,"v":7}
  • {"r":3,"c":2,"v":8}
  • {"r":2,"c":1,"v":25}